HOUSTON, April 23, 2008 (PRIME NEWSWIRE) -- Crown Castle International Corp. (NYSE:CCI) today reported results for the quarter ended March 31, 2008 and announced that the Board of Directors has approved a succession plan for its Chief Executive Officer and Chief Financial Officer. Effective July 1, 2008, Ben Moreland, currently Crown Castle's Executive Vice President and Chief Financial Officer, will become Crown Castle's President and Chief Executive Officer; and Jay Brown, currently Crown Castle's Vice President and Treasurer, will become Crown Castle's Senior Vice President and Chief Financial Officer. John Kelly, currently Crown Castle's President and Chief Executive Officer, will remain in an executive position as Executive Vice-Chairman of the Board of Directors.

"We had a very good first quarter 2008, exceeding our estimates for site rental revenue, site rental gross margin, Adjusted EBITDA and recurring cash flow," stated Mr. Kelly. "The year over year growth in recurring cash flow per share of 40% that we achieved in the first quarter of 2008, as compared to the first quarter of 2007, demonstrates the significant growth that we are able to deliver with our tower portfolio and capital structure. During the first quarter of 2008, we completed the few remaining integration items related to our acquisition of Global Signal last year. We are encouraged by our year to date results, as reflected in our increase to full year 2008 Outlook. Further, with the successful conclusion of the 700 MHz auction and the accelerating growth in wireless data services, I remain excited about the long-term opportunities for our business."

CONSOLIDATED FINANCIAL RESULTS

On January 12, 2007, Global Signal Inc. merged into a subsidiary of Crown Castle ("Merger"). The results of the former subsidiaries of Global Signal Inc. ("Global Signal") are included in Crown Castle's results from January 12, 2007.

Site rental revenue for the first quarter of 2008 increased $45.2 million, or 15%, to $345.0 million from $299.8 million for the same period in the prior year. Site rental gross margin, defined as site rental revenue less site rental cost of operations, increased 20% to $232.7 million, up $39.5 million in the first quarter of 2008 from the same period in 2007. Adjusted EBITDA for the first quarter of 2008 increased $43.7 million, or 26%, to $211.0 million, up from $167.3 million for the same period in 2007.

Recurring cash flow, defined as Adjusted EBITDA less interest expense less sustaining capital expenditures, increased from $82.4 million in the first quarter of 2007 to $118.1 million for the first quarter of 2008, up 43%. Weighted average common shares outstanding was 279.3 million for the first quarter of 2008 as compared to 273.5 million for the same period in the prior year. Recurring cash flow per share, defined as recurring cash flow divided by weighted average common shares outstanding, increased 40% to $0.42 in the first quarter of 2008, compared to $0.30 in the first quarter of 2007.

Net loss was $13.2 million for the first quarter of 2008, compared to a net loss of $42.9 million for the same period in 2007. Net loss after deduction of dividends on preferred stock was $18.4 million in the first quarter of 2008, compared to a loss of $48.1 million for the same period in 2007. First quarter 2008 net loss (after deduction of dividends on preferred stock) per share was $0.07, compared to a net loss per share of $0.18 in the first quarter of 2007.

SUCCESSION PLANS FOR CEO AND CFO

As approved by Crown Castle's Board of Directors, effective July 1, 2008, Mr. Moreland will become Crown Castle's President and Chief Executive Officer. Mr. Kelly will remain in an executive position as Executive Vice-Chairman of the Board of Directors with principal responsibility for overseeing Crown Castle's strategy and ensuring leadership continuity. Also effective July 1, 2008, Mr. Brown will become Crown Castle's Senior Vice President and Chief Financial Officer. J. Landis Martin will remain Chairman of the Board of Directors.

"The Board of Directors has been carefully evaluating our management succession plans and is extremely pleased with the depth of the management team that Mr. Kelly has built over the years," stated Mr. Martin. "Crown Castle is well-positioned to continue our record of success under the leadership of Ben Moreland. Both Mr. Moreland and Mr. Brown have been instrumental in the development and success of Crown Castle, and our Board of Directors is unanimous in our belief that their leadership will continue to deliver significant value to our stockholders."

"Our company has never been stronger operationally or financially," stated Mr. Kelly. "I am confident that our executive management team, under Ben's leadership, will take our company to new heights. I look forward to ensuring that a smooth transition of responsibilities occurs and to working with Ben on overall strategy as we capitalize on the strong wireless industry fundamentals."

"I have benefited greatly from John Kelly's leadership and guidance over the last eight years," stated Mr. Moreland. "I am excited to lead our experienced management team and this great organization in continuing Crown Castle's consistent track record of delivering for our employees, customers and stockholders."

Mr. Moreland was appointed Chief Financial Officer of Crown Castle in April 2000. Prior to that, he served as Senior Vice President and Treasurer of Crown Castle and its domestic subsidiaries from October 1999. He was appointed to the Board of Directors in August 2006. Mr. Brown was appointed Treasurer of Crown Castle in May 2004 and Vice President of Finance in August 2001. Since joining Crown Castle in August of 1999, Mr. Brown has served in a number of positions in corporate development and corporate finance.

SEGMENT RESULTS

U.S. site rental revenue for the first quarter of 2008 increased $39.0 million, or 14%, to $323.7 million, compared to first quarter 2007 U.S. site rental revenue of $284.8 million. U.S. site rental gross margin increased 19% to $217.3 million, up $34.4 million in the first quarter of 2008 from the same period in 2007.

Australia site rental revenue for the first quarter of 2008 increased $6.2 million, or 42%, to $21.3 million, compared to $15.0 million for the first quarter of 2007. Australia site rental gross margin for the first quarter of 2008 increased $5.0 million, or 49%, to $15.3 million, compared to first quarter 2007 site rental gross margin of $10.3 million. In prior years, Crown Castle has benefited from an annual customer payment in the second quarter. This benefit to site rental revenue and site rental gross margin of $2.7 million was achieved in the first quarter of 2008 and, as such, was not included in our previously provided first quarter 2008 Outlook.

INVESTMENTS AND LIQUIDITY

During the first quarter of 2008, Crown Castle invested $61.7 million in capital expenditures, comprised of $3.8 million of sustaining capital expenditures and $57.9 million of revenue generating capital expenditures, of which $16.9 million was spent on existing sites, $27.0 million on land purchases and $14.0 million on the construction of new sites, including the completion of nine towers, and the acquisition of ten towers.

During the first quarter of 2008, Crown Castle purchased 1.1 million of its outstanding common shares for $42 million at an average price of $36.99 per share. Since January 2003, Crown Castle has invested over $2.2 billion in purchases of its securities to reduce fully diluted common shares by 88 million, or 29%.

In January 2008, Crown Castle borrowed $75 million under its revolving credit facility. As of April 23, 2008, Crown Castle has $100 million of undrawn capacity under its revolving credit facility.

"During the first quarter of 2008, we invested over $100 million in our core tower business including purchases of our own shares," stated Mr. Moreland. "Consistent with our past actions, we have continued to evaluate and invest in share repurchases, construction of new sites, tower acquisitions and land purchases, which we believe will be long-term accretive to our business. This strategy, along with strong operating results and an appropriate capital structure, has resulted in a 40% growth in recurring cash flow per share in the first quarter of 2008. As presented in the Outlook table below, our 2008 Outlook suggests continued growth in recurring cash flow per share above our targeted 20% to 25% growth per year."

OUTLOOK

The following Outlook tables are based on current expectations and assumptions. The Outlook tables assume a U.S. dollar to Australian dollar exchange rate of 0.89 U.S. dollars to 1.00 Australian dollar for full year 2008 Outlook.

As reflected in the following tables, Crown Castle has increased the midpoint of its full year 2008 Outlook, previously issued on February 6, 2008, for site rental revenue by $10.5 million, site rental gross margin by $10.0 million, Adjusted EBITDA by $7.0 million and recurring cash flow by $7.0 million.

This Outlook section contains forward-looking statements, and actual results may differ materially. Information regarding potential risks which could cause actual results to differ from the forward-looking statements herein is set forth below and in Crown Castle's filings with the Securities and Exchange Commission ("SEC").

The following table sets forth Crown Castle's current Outlook for the second quarter of 2008 and full year 2008:



 (in millions, except per share 
  amounts)                        Second Quarter 2008   Full Year 2008
                                  -------------------   --------------
 Site rental revenue                  $344 to $349     $1,390 to $1,400
 Site rental cost of operations       $111 to $115       $450 to $455
 Site rental gross margin             $231 to $236       $940 to $950
 Adjusted EBITDA                      $208 to $213       $858 to $868
 Interest expense and amortization
  of deferred financing costs(a)
                                       $88 to $91        $355 to $360
 Sustaining capital expenditures        $6 to $8          $21 to $26
 Recurring cash flow                  $112 to $117       $481 to $491
 Net loss after deduction of 
  dividends on preferred stock       $(36) to $0       $(111) to $(11)
 Net loss per share(b)             $(0.13) to $0.00   $(0.40) to $(0.04)

 (a) Inclusive of $6.3 million and $25.3 million, respectively, of 
     non-cash expense.
 (b) Based on 279.2 million shares outstanding as of March 31, 2008.

CONFERENCE CALL DETAILS

Crown Castle has scheduled a conference call for Thursday, April 24, 2008, at 10:30 a.m. eastern time to discuss first quarter 2008 results and Crown Castle's Outlook. Please dial 303-262-2175 and ask for the Crown Castle call at least 10 minutes prior to the start time. A telephonic replay of the conference call will be available from 12:30 p.m. eastern time on Thursday, April 24, 2008 through 11:59 p.m. eastern time on Thursday, May 1, 2008 and may be accessed by dialing 303-590-3000 using passcode 11112200#. An audio archive will also be available on Crown Castle's website at http://www.crowncastle.com shortly after the call and will be accessible for approximately 90 days.

Crown Castle engineers, deploys, owns and operates technologically advanced shared wireless infrastructure, including extensive networks of towers. Crown Castle offers significant wireless communications coverage to 91 of the top 100 U.S. markets and to substantially all of the Australian population. Crown Castle owns, operates and manages over 22,000 and over 1,400 wireless communication sites in the U.S. and Australia, respectively. For more information on Crown Castle, please visit http://www.crowncastle.com.

The Crown Castle International Corp. logo is available at http://www.primenewswire.com/newsroom/prs/?pkgid=3063

Summary of Non-Cash Amounts in Tower Gross Margin

In accordance with applicable accounting standards, Crown Castle recognizes site rental revenues and ground lease expenses monthly on a straight-line basis, regardless of whether the receipts and payments are in equal monthly amounts. An agreement, related to an acquisition in Australia, provides the seller with a rent-free period at the beginning of the lease term, and other agreements call for rent to be prepaid for a specified period. If, and to the extent the payment terms call for fixed escalations (as in fixed dollar or fixed percentage increases), the effect of such increases is recognized on a straight-line basis over the appropriate lease term. As a result of this accounting method, a portion of the revenue and expense recognized in a given period represents cash collected or paid in other periods.

A summary of the non-cash portions of our site rental revenue, ground lease expense, stock-based compensation for those employees directly related to U.S. tower operations, net amortization of below-market and above-market lease acquired, and resulting impact on site rental gross margins is as follows:



                                            For the Three Months Ended
                                            --------------------------
                                                  March 31, 2008
 (in thousands)                                   --------------
 Non-cash portion of site rental revenue 
  attributable to rent free periods and
  straight-line recognition of revenue            $   10,533
 Non-cash portion of ground lease expense 
  attributable to straight-line recognition 
  of expenses                                        (10,239)
 Stock-based compensation charges                       (298)
 Net amortization of below-market and 
  above-market leases                                    132
                                                  -----------
 Non-cash impact on site rental gross margin      $      128
                                                  ===========

Non-GAAP Financial Measures

This press release includes presentations of Adjusted EBITDA and recurring cash flow, which are non-GAAP financial measures.

Crown Castle defines Adjusted EBITDA as net income (loss) plus restructuring charges (credits), asset write-down charges, integration costs, depreciation, amortization and accretion, losses on purchases and redemptions of debt, interest and other income (expense), interest expense and amortization of deferred financing costs, impairment of available-for-sale securities, benefit (provision) for income taxes, minority interests, cumulative effect of change in accounting principle, income (loss) from discontinued operations, and stock-based compensation charges. Adjusted EBITDA is not intended as an alternative measure of cash flow from operations or operating results (as determined in accordance with Generally Accepted Accounting Principles ("GAAP")).

Crown Castle defines recurring cash flow to be Adjusted EBITDA, less interest expense and less sustaining capital expenditures. Each of the amounts included in the calculation of recurring cash flow are computed in accordance with GAAP, with the exception of sustaining capital expenditures, which is not defined under GAAP. We define sustaining capital expenditures as capital expenditures (determined in accordance with GAAP) which do not increase the capacity or life of our revenue generating assets and include capitalized costs related to (i) maintenance activities on our towers, (ii) vehicles, (iii) information technology equipment, and (iv) office equipment. Recurring cash flow is not intended as an alternative measure of cash flow from operations or operating results (as determined in accordance with GAAP).

Adjusted EBITDA and recurring cash flow are presented as additional information because management believes these measures are useful indicators of the financial performance of our core businesses. In addition, Adjusted EBITDA is a measure of current financial performance used in our debt covenant calculations. Our measures of Adjusted EBITDA and recurring cash flow may not be comparable to similarly titled measures of other companies, including companies in the tower industry and in the historical financial statements of Global Signal. The tables set forth below reconcile these non-GAAP financial measures to comparable GAAP financial measures.

Reconciliations of Non-GAAP Financial Measures to Comparable GAAP Financial Measures:

Adjusted EBITDA, recurring cash flow and recurring cash flow per share for the quarters ended March 31, 2008 and 2007 are computed as follows:



                                         For the Three Months Ended
                                       -------------------------------
                                       March 31, 2008   March 31, 2007
                                       --------------   -------------- 
 (in thousands, except per share 
  amounts)
 Net income (loss)                     $    (13,173)    $    (42,891)
 Adjustments to increase (decrease)
  net income (loss):
   Asset write-down charges                   1,304            1,352
   Integration costs(a)                       2,504            8,848
   Depreciation, amortization and
    accretion                               132,033          138,693
   Interest and other income (expense)       (2,310)          (3,299)
   Interest expense and amortization of
    deferred financing costs                 89,145           82,015
   Benefit (provision) for income taxes      (4,659)         (22,162)
   Minority interests                            --             (217)
   Stock-based compensation charges(c)        6,155            4,919
                                       ------------     ------------
   Adjusted EBITDA                     $    210,999     $    167,258
                                       ============     ============
 Less: Interest expense and
  amortization of deferred financing
  costs                                      89,145           82,015
 Less: Sustaining capital expenditures        3,760            2,844
                                       ------------     ------------
 Recurring cash flow                   $    118,094     $     82,399
                                       ============     ============
 Weighted average common shares
  outstanding                               279,340          273,456
 Recurring cash flow per share         $       0.42     $       0.30
                                       ============     ============

Adjusted EBITDA and recurring cash flow for the quarter ending June 30, 2008 and the year ending December 31, 2008 are forecasted as follows:



                                             Q2 2008     Full Year 2008
                                             -------     --------------
(in millions)                                Outlook         Outlook
                                             -------         -------
 Net income (loss)                         $(31) to $5    $(90) to $10
 Adjustments to increase (decrease) net 
  income (loss):
   Asset write-down charges                   $0 to $3       $5 to $10
   Integration costs                             --          $2 to $4
   Depreciation, amortization and 
    accretion                               $130 to $140   $520 to $560
   Interest and other income (expense)      $(3) to $(1)  $(12) to $(7)
   Interest expense and amortization of 
    deferred financing costs(b)              $88 to $91    $355 to $360
    
   Benefit (provision) for income taxes    $(12) to $(2)  $(35) to $(9)
   Stock-based compensation charges(c)        $5 to $8      $23 to $30
                                              --------      ----------
 Adjusted EBITDA                            $208 to $213   $858 to $868
                                            ============   ============
 Less: Interest expense and amortization of 
  deferred financing  costs(b)               $88 to $91    $355 to $360

 Less: Sustaining capital expenditures        $6 to $8      $21 to $26
                                              --------      ----------
 Recurring cash flow                        $112 to $117   $481 to $491
                                            ============   ============

 (a) Inclusive of stock-based compensation charges.
 (b) Inclusive of $6.3 million and $25.3 million, respectively, from 
    non-cash expense.
 (c) Exclusive of amounts included in integration costs.

Other Calculations:

Sustaining capital expenditures for the quarters ended March 31, 2008 and March 31, 2007 is computed as follows:



                                           For the Three Months Ended
                                         ------------------------------
                                         March 31, 2008  March 31, 2007
                                         ------------------------------
                                                                   
 (in thousands)
 Capital Expenditures                    $     61,686    $     47,179
 Less: Revenue enhancing on existing 
  sites                                        16,910          11,021
 Less: Land purchases                          27,047          26,033
 Less: New site acquisition and 
  construction                                 13,969           7,281
                                         ------------    ------------
 Sustaining capital expenditures         $      3,760    $      2,844
                                         ============    ============

Site rental gross margin for the quarter ending June 30, 2008 and for the year ending December 31, 2008 is forecasted as follows:



                                           Q2 2008     Full Year 2008
                                           -------     --------------
 (in millions)                             Outlook        Outlook
                                           -------        -------
 Site rental revenue                    $344 to $349  $1,390 to $1,400
 Less: Site rental cost of operations   $111 to $115    $450 to $455
                                        ------------    ------------
 Site rental gross margin               $231 to $236    $940 to $950
                                        ============    ============

Cautionary Language Regarding Forward-Looking Statements

This press release contains forward-looking statements and information that are based on our management's current expectations. Such statements include, but are not limited to, plans, projections, Outlook and estimates regarding (i) long-term opportunities for our business, (ii) our future results, including as compared to historical results, following and based upon the management changes described in the press release, (iii) our operational and financial strength, (iv) recurring cash flow (including recurring cash flow per share and annual growth), (v) the impact of and return on our investments, including the purchase of our securities, land purchases, and the construction and acquisition of towers, (vi) currency exchange rates, (vii) site rental revenues, (viii) site rental cost of operations, (ix) site rental gross margin, (x) Adjusted EBITDA, (xi) interest expense and amortization of deferred financing costs, (xii) sustaining capital expenditures, (xiii) net loss (including net loss per share), and (xiv) the utility of certain financial measures in analyzing our results. Such forward-looking statements are subject to certain risks, uncertainties and assumptions, including but not limited to prevailing market conditions and the following:



 * Our business depends on the demand for wireless communications and
   towers, and we may be adversely affected by any slowdown in such
   demand.
 * A substantial portion of our revenues is derived from a small
   number of customers, and the loss, consolidation or financial
   instability of, or network sharing among, any of our limited number
   of customers may materially decrease revenues.
 * Consolidation among our customers may result in duplicate or
   overlapping parts of networks, which may result in a reduction of
   sites and have a negative effect on revenues and cash flows.
 * Our substantial level of indebtedness may adversely affect our
   ability to react to changes in our business, and we may be limited
   in our ability to refinance our existing debt or use debt to fund
   future capital needs.
 * A wireless communications industry slowdown may materially and
   adversely affect our business (including reducing demand for our
   towers and network services) and the business of our customers.
 * As a result of competition in our industry, including from some
   competitors with significantly more resources or less debt than we
   have, we may find it more difficult to achieve favorable rental
   rates on our towers.
 * New technologies may significantly reduce demand for our towers and
   negatively impact our revenues.
 * New wireless technologies may not deploy or be adopted by customers
   as rapidly or in the manner projected.
 * If we fail to retain rights to the land under our towers, our
   business may be adversely affected.
 * If we are unable to raise capital in the future when needed, we may
   not be able to fund future growth opportunities.
 * FiberTower's business has certain risk factors different from our
   core tower business, including an unproven business model, and may
   produce results that are less than anticipated, resulting in a
   write off of all or part of our investment in FiberTower.
 * Our lease relating to our Spectrum has certain risk factors
   different from our core tower business, including that the Spectrum
   lease may not be renewed or continued, that the option to acquire
   the Spectrum may not be exercised, and that the Spectrum may not be
   deployed, which may result in the revenues derived from the
   Spectrum being less than those that may otherwise have been
   anticipated.
 * If we fail to comply with laws and regulations which regulate our
   business and which may change at any time, we may be fined or even
   lose our right to conduct some of our business.
 * Sales or issuances of a substantial number of shares of our common
   stock may adversely affect the market price of our common stock.
 * Our network services business has historically experienced
   significant volatility in demand, which reduces the predictability
   of our results.
 * If radio frequency emissions from wireless handsets or equipment on
   our towers are demonstrated to cause negative health effects,
   potential future claims could adversely affect our operations,
   costs and revenues.
 * Certain provisions of our certificate of incorporation, bylaws and
   operative agreements and domestic and international competition
   laws may make it more difficult for a third party to acquire
   control of us or for us to acquire control of a third party, even
   if such a change in control would be beneficial to our
   stockholders.
 * We may suffer losses due to exposure to changes in foreign currency
   exchange rates relating to our operations outside the U.S.

Should one or more of these or other risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. More information about potential risk factors which could affect our results is included in our filings with the SEC.



 CROWN CASTLE INTERNATIONAL CORP.
 CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)
 AND OTHER FINANCIAL DATA
 (in thousands, except per share data)

                                                   Three Months Ended
                                                       March 31,
                                                 ---------------------
                                                   2008         2007
                                                 ---------------------
 Net revenues:
   Site rental                                   $ 345,033   $ 299,792
   Network services and other                       25,588      15,917
                                                 ---------   ---------
     Total net revenues                            370,621     315,709
                                                 ---------   ---------
 Costs of operations (exclusive of depreciation,
  amortization and accretion):
   Site rental                                     112,380     106,595
   Network services and other                       18,411      11,773
                                                 ---------   ---------
     Total costs of operations                     130,791     118,368
                                                 ---------   ---------
 General and administrative                         34,986      35,002
 Asset write-down charges                            1,304       1,352
 Integration costs                                   2,504       8,848
 Depreciation, amortization and accretion          132,033     138,693
                                                 ---------   ---------
   Operating income (loss)                          69,003      13,446
 Interest and other income (expense)                 2,310       3,299
 Interest expense and amortization of deferred
  financing costs                                  (89,145)    (82,015)
                                                 ---------   ---------
   Income (loss) from continuing operations
    before income taxes and minority interests     (17,832)    (65,270)
 Benefit (provision) for income taxes                4,659      22,162
 Minority interests                                     --         217
                                                 ---------   ---------
 Net income (loss)                                 (13,173)    (42,891)
 Dividends on preferred stock                       (5,202)     (5,201)
                                                 ---------   ---------
 Net income (loss) after deduction of dividends
  on preferred stock                             $ (18,375)  $ (48,092)
                                                 =========   =========

 Net income (loss) per common share - basic and
  diluted                                        $   (0.07)  $   (0.18)
                                                 =========   =========

 Weighted average common shares outstanding -
  basic and diluted                                279,340     273,456
                                                 ---------   ---------

 Adjusted EBITDA                                 $ 210,999   $ 167,258
                                                 =========   =========

 Stock-based compensation expenses:
   Site rental cost of operations                $     298   $      66
   Network services and other cost of operations       133          69
   General and administrative                        5,724       4,784
   Integration costs                                    --         631
                                                 ---------   ---------
     Total                                       $   6,155   $   5,550
                                                 =========   =========


 CROWN CASTLE INTERNATIONAL CORP.
 CONDENSED CONSOLIDATED BALANCE SHEET (UNAUDITED)
 (in thousands)

                                             March 31,    December 31,
                                               2008           2007
                                           ------------   ------------
                        ASSETS
 Current assets:
  Cash and cash equivalents                $     97,232   $     75,245
  Restricted cash, current portion              175,880        165,556
  Receivables, net of allowance for
   doubtful accounts                             35,331         37,134
  Prepaid expenses                               92,353         72,518
  Deferred income tax assets and other
   current assets                               142,564        146,802
                                           ------------   ------------
    Total current assets                        543,360        497,255
 Deferred site rental receivables               134,453        127,388
 Available-for-sale securities, net              46,381         60,085
 Property and equipment, net                  5,021,536      5,051,055
 Goodwill                                     1,970,501      1,970,501
 Other intangible assets, net                 2,639,950      2,676,288
 Deferred financing costs and other
  assets, net of accumulated amortization       114,182        105,561
                                           ------------   ------------
                                           $ 10,470,363   $ 10,488,133
                                           ============   ============

   LIABILITIES AND STOCKHOLDERS' EQUITY
 Current liabilities:                                       
   Accounts payable                        $     32,377   $     37,366
   Deferred revenues and other accrued
    liabilities                                 243,692        253,121
   Short-term debt and current maturities
    of long-term debt                           156,500         81,500
                                           ------------   ------------
     Total current liabilities                  432,569        371,987
 Long-term debt, less current maturities      5,986,978      5,987,695
 Deferred income tax liability                  238,376        281,259
 Deferred ground lease payables and other
  liabilities                                   452,444        366,483
                                           ------------   ------------
     Total liabilities                        7,110,367      7,007,424
 Redeemable preferred stock                     314,030        313,798
 Stockholders' equity                         3,045,966      3,166,911
                                           ------------   ------------
                                           $ 10,470,363   $ 10,488,133
                                           ============   ============


 CROWN CASTLE INTERNATIONAL CORP.
 CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)
 (in thousands)

                                                   Three Months Ended
                                                        March 31,
                                                  --------------------
                                                    2008        2007
                                                  ---------  ---------
 Cash flows from operating activities:
   Net income (loss)                              $ (13,173) $ (42,891)
   Adjustments to reconcile net income (loss) to
   net cash provided by (used for) operating
   activities:
     Depreciation, amortization and accretion       132,033    138,693
     Deferred income tax (benefit) provision         (6,308)   (22,906)
     Other adjustments, net                          11,915     11,903
     Changes in assets and liabilities, excluding
      the effects of acquisitions:
       Increase (decrease) in liabilities           (23,101)   (33,166)
       Decrease (increase) in assets                (33,574)    (2,877)
                                                  ---------  ---------
         Net cash provided by (used for) 
          operating activities                       67,792     48,756
                                                  ---------  ---------

 Cash flows from investing activities:
   Proceeds from investments and disposition of
    property and equipment                              104      2,536
   Payments for acquisitions (net of cash
    acquired) of businesses                              --   (489,477)
   Capital expenditures                             (61,686)   (47,179)
                                                  ---------  ---------
         Net cash provided by (used for)
          investing activities                      (61,582)  (534,120)
                                                  ---------  ---------

 Cash flows from financing activities:
   Proceeds from issuance of long-term debt              --    650,000
   Proceeds from issuance of capital stock              946      5,576
   Principal payments on long-term debt              (1,625)        --
   Purchases of capital stock                       (42,365)  (600,709)
   Borrowings under revolving credit agreements      75,000         --
   Incurrence of financing costs                     (1,502)    (6,062)
   Net decrease (increase) in restricted cash       (10,324)   (27,112)
   Dividends on preferred stock                      (4,969)    (4,969)
                                                  ---------  ---------
         Net cash provided by (used for)
          financing activities                       15,161     16,724
                                                  ---------  ---------

 Effect of exchange rate changes on cash                616        460
 Net increase (decrease) in cash and cash
  equivalents                                        21,987   (468,180)
 Cash and cash equivalents at beginning of period    75,245    592,716
                                                  ---------  ---------
 Cash and cash equivalents at end of period       $  97,232  $ 124,536
                                                  =========  =========

 Supplemental disclosure of cash flow
  information:
   Interest paid                                  $  82,385  $  67,651
   Income taxes paid                                    939        393


 CROWN CASTLE INTERNATIONAL CORP.
 Summary Fact Sheet
 (dollars in thousands)

                --------------------------  --------------------------
                  Quarter Ended 6/30/07        Quarter Ended 9/30/07
                --------------------------  --------------------------
                  CCUSA     CCAL    CCIC      CCUSA     CCAL    CCIC
                --------------------------  --------------------------
 Revenues
  Site Rental   $303,665 $ 18,671 $322,336  $309,798 $ 16,999 $326,797
  Services        18,652    1,882   20,534    23,035    1,912   24,947
                --------------------------  --------------------------
 Total Revenues  322,317   20,553  342,870   332,833   18,911  351,744

 Operating
  Expenses
   Site Rental   106,979    5,187  112,166   106,014    5,849  111,863
   Services       13,608    1,071   14,679    15,864    1,168   17,032
                --------------------------  --------------------------
 Total Operating
  Expenses       120,587    6,258  126,845   121,878    7,017  128,895

 General &
  Administrative  33,064    3,263   36,327    29,319    3,562   32,881

 Operating Cash
  Flow           168,666   11,032  179,698   181,636    8,332  189,968

 Add: Stock-
  Based Compen-
  sation (a)       6,252      430    6,682     5,373      439    5,812
                --------------------------  --------------------------
 Adjusted
  EBITDA        $174,918 $ 11,462 $186,380  $187,009 $  8,771 $195,780
                --------------------------  --------------------------

                --------------------------  --------------------------
 Gross Margins:
  Site Rental         65%      72%      65%       66%      66%      66%
  Services            27%      43%      29%       31%      39%      32%

 Operating Cash
  Flow Margins        52%      54%      52%       55%      44%      54%

 Adjusted EBITDA
  Margin              54%      56%      54%       56%      46%      56%
                --------------------------  --------------------------


                --------------------------  --------------------------
                  Quarter Ended 12/31/07       Quarter Ended 3/31/08
                --------------------------  --------------------------
                  CCUSA     CCAL    CCIC      CCUSA     CCAL    CCIC
                --------------------------  --------------------------
 Revenues
  Site Rental   $316,750 $ 20,793 $337,543  $323,748 $ 21,285 $345,033
  Services        33,873    3,747   37,620    23,834    1,754   25,588
                --------------------------  --------------------------
 Total Revenues  350,623   24,540  375,163   347,582   23,039  370,621

 Operating
  Expenses
   Site Rental   106,636    6,082  112,718   106,432    5,948  112,380
   Services       19,906    2,352   22,258    17,359    1,052   18,411
                --------------------------  --------------------------
 Total Operating
  Expenses       126,542    8,434  134,976   123,791    7,000  130,791

 General &
  Administrative  32,392    6,244   38,636    31,032    3,954   34,986

 Operating Cash
  Flow           191,689    9,862  201,551   192,759   12,085  204,844

 Add: Stock-
  Based Compen-
   sation (a)      5,164    2,510    7,674     5,418      737    6,155
                --------------------------  --------------------------
 Adjusted
  EBITDA        $196,853 $ 12,372 $209,225  $198,177 $ 12,822 $210,999
                --------------------------  --------------------------

                --------------------------  --------------------------
 Gross Margins:
  Site Rental         66%      71%      67%       67%      72%      67%
  Services            41%      37%      41%       27%      40%      28%
 Operating Cash
  Flow Margins        55%      40%      54%       55%      52%      55%
 Adjusted EBITDA
  Margin              56%      50%      56%       57%      56%      57%
                --------------------------  --------------------------

 (a) Exclusive of charges included in restructuring charges and
     integration costs.


  Reconciliation of Non-GAAP Financial Measure (Adjusted EBITDA) to
  GAAP Financial Measure:

  (dollars in thousands)
                             -----------------------------------------
                                          Quarter Ended
                             -----------------------------------------
                             6/30/2007  9/30/2007  12/31/2007 3/31/2008

 Net income (loss)           $(32,740)  $(67,013)  $(80,169)  $(13,173)
 Adjustments to increase
  (decrease) net income
  (loss):
   Restructuring charges
    (credits) (1)                  --      3,191         --         --
   Asset write-down
    charges                     3,391     59,306      1,466      1,304
   Integration costs (1)        5,069      4,749      6,752      2,504
   Depreciation, amortization
    and accretion             133,324    135,540    132,347    132,033
   Losses on purchases and
    redemptions of debt            --         --         --         --
   Interest and other income
    (expense)                  (2,906)    (2,965)      (181)    (2,310)
   Interest expense,
    amortization of deferred
    financing costs            88,790     89,407     90,047     89,145
   Impairment of available-
    for-sale securities            --         --     75,623         --
   Benefit (provision) for
    income taxes              (15,620)   (31,923)   (24,334)    (4,659)
   Minority interests             390       (324)        --         --
   Cumulative effect of
    change in accounting
    principle                      --         --         --         --
   Income (loss) from dis-
    continued operations,
    net of tax                     --         --         --         --
   Stock-based
    compensation (2)            6,682      5,812      7,674      6,155
 Adjusted EBITDA             $186,380   $195,780   $209,225   $210,999
                             ========   ========   ========   ========

 (1) inclusive of stock-based compensation charges
 (2) exclusive of amounts included in restructuring charges
     (credits) and integration costs


 -------------------------------------------
     CCI FACT SHEET Q1 2007 to Q1 2008
 -------------------------------------------
    dollars in thousands

 ---------------------------------------------------------------------
                                                                  %
                                          Q1 '07        Q1 '08  Change
                                       ----------    ---------- ------
 CCUSA
 -----
 Site Rental Revenue                   $  284,752    $  323,748   14%
 Ending Sites                              22,264        22,416    1%

 CCAL
 ----
 Site Rental Revenue                   $   15,040    $   21,285   42%
 Ending Sites                               1,438         1,440    0%


 TOTAL CCIC
 ----------
 Site Rental Revenue                   $  299,792    $  345,033   15%
 Ending Sites                              23,702        23,856    1%
                                       ----------    ---------- ------


 Ending Cash and Cash Equivalents      $  124,536*   $   97,232*

 Debt
 ----
 Bank Debt                             $  650,000    $  793,500
 Securitized Debt & Other Notes        $5,346,241    $5,349,978
 6 1/4% Convertible Preferred Stock    $  313,103    $  314,030
                                       ----------    ----------
 Total Debt                            $6,309,344    $6,457,508

 Leverage Ratios
 ---------------
 Net Bank Debt + Bonds  / EBITDA              8.8X          7.2X
 Total Net Debt / EBITDA                      9.2X          7.5X
 Last Quarter Annualized
  Adjusted EBITDA                      $  669,032    $  843,996

 * Excludes Restricted Cash
Crown Castle International Corp.
Ben Moreland, CFO
Jay Brown, Treasurer
713-570-3000