News Release
PAETEC Holding Corp. Announces Second Quarter 2007 Results

FAIRPORT, N.Y.--(BUSINESS WIRE)--Aug. 9, 2007--PAETEC Holding Corp. (NASDAQ GS: PAET) today announced second quarter 2007 financial and operating results. "Our first full quarter as a publicly traded company is one that we are excited about. PAETEC enjoyed the best financial quarter in our company's history," said PAETEC Chairman and CEO Arunas A. Chesonis. "We continued to see significant growth and interest in our data and VoIP product offerings, while also benefiting from the synergies being realized from the US LEC merger." Highlights of second quarter 2007, which is the first in which US LEC's results are reflected for the full quarter, include the following:

    --  Revenue of $274.5 million, which represented an 89% increase
        over second quarter 2006 revenue of $145.6 million;

    --  Adjusted EBITDA* of $52.5 million, which represented a 109%
        increase over second quarter 2006 adjusted EBITDA of $25.1
        million;

    --  Net income of $6.0 million compared to a $(5.8) million net
        loss in second quarter 2006;

    --  Free cash flow* of $31.5 million, which represented the 18th
        consecutive quarter in which PAETEC Holding or its predecessor
        generated positive free cash flow;

    --  Ended the quarter with a cash balance of $84.5 million;

    --  An increase of 141% in the number of access line equivalents
        in service, from 1.10 million as of June 30, 2006 to 2.65
        million as of June 30, 2007; and

    --  Successful completion on July 10, 2007 of amendments to
        PAETEC's existing bank credit facility and a $300 million
        senior note offering priced at the end of the quarter.

    Quarterly Performance

Total revenue for second quarter 2007 increased 89% to $274.5 million from $145.6 million for second quarter 2006, principally due to the addition of US LEC's results. Adjusted EBITDA for the second quarter 2007 increased 109% to $52.5 million over adjusted EBITDA for the second quarter 2006 of $25.1 million. Adjusted EBITDA margin, which represents adjusted EBITDA as a percentage of total revenue, was 19.1% for the second quarter 2007 compared to an adjusted EBITDA margin of 17.3% for the second quarter 2006. Network operating leverage and merger-related synergies largely accounted for the increase in adjusted EBITDA margins.

Network Services, which accounted for 83% of PAETEC's second quarter 2007 total revenue, experienced strong growth, increasing 100% year over year to $228 million. US LEC's operations, PAETEC's fast growing MPLS VPN product, and its integrated voice and data T1 sales all contributed to the positive results. Carrier Services represented 14% of second quarter 2007 revenues and grew 75% year over year to $37.5 million, largely reflecting the addition of US LEC's operations as well as solid 19% internal growth. Integrated Services accounted for the remaining 3% of second quarter revenues and experienced an 11% decline year over year. Integrated Services continues to have an annual revenue cycle and tends to provide uneven results on a quarterly basis.

Net income for second quarter 2007 was $6.0 million compared to a net loss of $(5.8) million for the second quarter of 2006. Last year's reported net loss was largely attributable to the company's leveraged recapitalization that resulted in $14.8 million in additional expenses. For second quarter 2007, depreciation and amortization expense was $20.9 million and interest expense was $18.5 million, both up significantly year over year primarily from the depreciation of a larger asset base associated with the merger, as well as increased debt levels as a result of the transaction.

PAETEC ended the second quarter 2007 with 100.9 million common shares outstanding. A fully diluted share count as of the end of the second quarter 2007 also would reflect that the Company had approximately 14.1 million common shares subject to outstanding stock options, 7.5 million common shares represented by outstanding restricted stock units (RSUs), and 2.6 million common shares subject to outstanding warrants, amounting to a total of 24.2 million additional fully-diluted common shares. As a result, PAETEC's fully diluted common share count was approximately 125 million as of June 30, 2007.

Pro Forma Quarterly Performance

Total revenue for second quarter 2007 increased 9% to $274.5 million over the pro forma revenue of $252.3 million that the combined company would have had for second quarter 2006 assuming the US LEC merger had occurred on April 1, 2006 (without giving effect to any pro forma adjustments or unrealized synergies). Adjusted EBITDA for second quarter 2007 increased 31% to $52.5 million over the adjusted EBITDA of $40.2 million that the combined company would have generated for the second quarter 2006 on the same pro forma basis. Adjusted EBITDA margin of 19.1% for second quarter 2007 increased from a pro forma adjusted EBITDA margin of 15.9% for second quarter 2006, largely as a result of merger-related synergies and continued operating leverage of the company's network and employee base. Net income for second quarter 2007 was $6.0 million compared to a pro forma net loss of ($8.9) million for second quarter of 2006. Last year's pro forma net loss was largely attributable to PAETEC's June 2006 leveraged recapitalization that resulted in $14.8 million in additional expenses. For second quarter 2007, depreciation and amortization expense increased 1% from second quarter 2006 pro forma depreciation and amortization expense to $20.9 million. Interest expense nearly doubled to $18.5 million from the pro forma interest expense for second quarter 2006.

Integration Update

Integration efforts related to the US LEC merger to date have focused on network consolidation, the segmentation of sales distribution channels, the rebranding of marketing materials, and the integration of job functions and personnel policies. The majority of synergies were expected from savings in network costs and streamlining of certain SG&A components, which have largely been completed. PAETEC continues to expect that it will be able to realize a total of $25 million in merger-related synergies for 2007, as well as an additional $15 million for 2008.

"Integration with the former US LEC is proceeding very well, with several milestones - such as the June merger of our respective data networks - occurring faster than anticipated," said EJ Butler, Jr., chief operating officer for PAETEC. "Our focus now and for the balance of the year is on the integration of systems, back office processes, and employee training. Continued progress should bring the availability of our entire product suite over the combined company footprint during the fourth quarter."

Capital Expenditures

PAETEC continues to invest in the enhancement of its network and product offerings. Capital expenditures for second quarter 2007 increased to $21.0 million, or 8% of total revenue, from $9.8 million, or 7% of total revenue, for second quarter 2006. Capital expenditures increased 26% from the $16.7 million in pro forma combined capital expenditures applied by PAETEC and US LEC in second quarter 2006 (or 7% of total combined revenues). Capital expenditures for second quarter 2007 were associated with investments in the PAETEC network, including expansion in the switching and information technology infrastructure.

Cash flow, Financing, and Liquidity

PAETEC reported second quarter 2007 free cash flow of $31.5 million, which increased 106% from $15.3 million in second quarter 2006. PAETEC also ended the quarter with a cash balance of $84.5 million, up from a first quarter 2007 level of $53.4 million, largely due to increased cash flow from operations as well as cash received from the exercise of stock options. Cash flow provided by operations was $36.0 million in second quarter 2007 and $(3.7) million used in operations in second quarter 2006.

As of June 30, 2007, PAETEC's $50 million revolver remained undrawn and $798 million was outstanding under its credit facility term loan. On July 10, 2007, PAETEC closed on two advantageous financing transactions that did not result in any increase in total debt. PAETEC completed its sale of $300 million 9.5% Senior Notes due 2015 and used the proceeds from this issue to pay down its existing term loan from $798 to $498 million. In conjunction with the paydown, PAETEC amended its existing credit facility to consist of a $50 million revolver and a $500 million term loan.

    With these transactions, PAETEC:

    --  Introduced itself to a new debt investor class--the high yield
        bond market;

    --  Layered in long-term debt to better position its balance sheet
        for growth;

    --  Reduced its overall cost of capital, with the expectation that
        its annual interest expense will decrease by approximately $3
        million;

    --  Increased its incremental term loan facility permitted under
        its bank credit facility from $100 million to $225 million;
        and

    --  Obtained debt covenant modifications that provide it with
        additional operational and financial flexibility.

    Full Year 2007 Outlook

"The business continues to track as expected and we remain confident leading into the second half of 2007," said Keith Wilson, PAETEC's chief financial officer. "Our EBITDA margin increased significantly year-over-year, and we expect the positive trends to continue. As a result, we are pleased to reaffirm our 2007 guidance." The table below highlights PAETEC's revenue, adjusted EBITDA, and capital expenditure expectations on both a reported basis and on the pro forma basis described above, assuming the US LEC merger had occurred on January 1, 2007 instead of February 28, 2007.

($ in millions)          FY 2007 (actual)        FY 2007 (pro forma)
----------------------------------------------------------------------
Revenue                  $1,037 to $1,052        $1,110 to $1,125
Adjusted EBITDA          $181 to $191            $195 to $205
Capital Expenditures     $75 to $85              $80 to $90

Conference Call

As previously announced, PAETEC will host a conference call with the investment community today at 8:30 a.m. EDT. Chairman and CEO Arunas Chesonis, Chief Financial Officer Keith Wilson, and Chief Operating Officer EJ Butler, Jr., will be participating. A live webcast and a replay of the call will be available at www.paetec.com.

Forward-Looking Statements

Except for statements that present historical facts, this release contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. In some cases, you can identify these statements by such forward-looking words as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "plan," "potential," "should," "will" and "would," or similar expressions. These statements, which include PAETEC's forecasts of total revenue, adjusted EBITDA, capital expenditures, merger-related synergies and free cash flow involve known and unknown risks, uncertainties and other factors that may cause PAETEC's actual operating results, financial position, levels of activity or performance to be materially different from those expressed or implied by such forward-looking statements. Some of these risks, uncertainties and factors are discussed under the caption "Risk Factors" in PAETEC's 2006 Annual Report on Form 10-K and in PAETEC's subsequently filed SEC reports. They include, but are not limited to, the following risks, uncertainties and other factors: changes in regulation and the regulatory environment; competition in the markets in which PAETEC operates; the continued availability of necessary network elements from competitors; PAETEC's ability to manage and expand its business and execute its acquisition strategy, to adapt its product and service offerings to changes in customer preferences, and to convert its existing network to a network with more advanced technology; effects of network failures, systems breaches, natural catastrophes and other service interruptions; and PAETEC's ability to service its indebtedness and to raise capital in the future. PAETEC disclaims any obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise.

About PAETEC

PAETEC (NASDAQ GS: PAET) is personalizing business communications for medium-sized and large businesses, enterprise organizations, and institutions across the United States. We offer a comprehensive suite of IP, voice, data and Internet services, as well as enterprise communications management software, network security solutions, CPE, and managed services. For more information, visit www.paetec.com.

* Adjusted EBITDA, as defined by PAETEC, represents net income before interest, provision for taxes, depreciation and amortization, change in fair value of Series A convertible redeemable preferred stock conversion rights, stock-based compensation, loss on extinguishment of debt, leveraged recapitalization costs, integration/restructuring costs and, with respect to pro forma adjusted EBITDA, loss related to investment in ETV. Free cash flow, as defined by PAETEC, consists of adjusted EBITDA less capital expenditures (purchases of property and equipment). Neither adjusted EBITDA nor free cash flow is a measurement of financial performance under accounting principles generally accepted in the United States. For additional information as to PAETEC's reasons for including these measurers, for a quantitative reconciliation of the differences between adjusted EBITDA and net loss (income), as net loss (income) is calculated in accordance with generally accepted accounting principles, and for a quantitative reconciliation of free cash flow to net cash provided by (used in) operating activities, as net cash provided by (used in) operating activities is calculated in accordance with generally accepted accounting principles, see the accompanying tables.

PAETEC Holding Corp. and Subsidiaries
Condensed Consolidated Statements of Operations
(in thousands)
                     Three Months    Three Months       Six Months
                    Ended June 30,  Ended March 31,   Ended June 30,
                  ----------------- ----------------------------------
                    2007     2006        2007         2007     2006
                  -------- -------- --------------- ------------------
REVENUE:
  Network
   services
   revenue        $228,010 $114,030 $       158,438 $386,448 $ 225,365
  Carrier
   services
   revenue          37,479   21,453          27,312   64,791    42,713
  Integrated
   solutions
   revenue           8,980   10,130           8,267   17,247    18,310
                  -------- -------- --------------- ------------------
     TOTAL
      REVENUE      274,469  145,613         194,017  468,486   286,388

COST OF SALES
 (exclusive of
 depreciation and
 amortization
 shown separately
 below)            128,802   69,799          91,361  220,163   137,197

SELLING, GENERAL
 AND
 ADMINISTRATIVE
  EXPENSES
   (exclusive of
   depreciation
   and
   amortization
   shown
   separately
   below and
   inclusive of
   stock-based
   compensation)    96,500   52,267          75,033  171,533   104,566
INTEGRATION/
 RESTRUCTURING
 COSTS               1,730                      105    1,835
LEVERAGED
 RECAPITALIZATION
 COSTS                   -   14,993               -        -    14,993
DEPRECIATION AND
 AMORTIZATION       20,932    8,586          13,153   34,085    16,179
                  -------- -------- --------------- ------------------
INCOME (LOSS)
 FROM OPERATIONS    26,505     (32)          14,365   40,870    13,453
CHANGE IN FAIR
 VALUE OF SERIES
 A CONVERTIBLE
 REDEEMABLE
 PREFERRED STOCK
 CONVERSION RIGHT        -  (5,281)               -        -  (10,777)
LOSS ON
 EXTINGUISHMENT
 OF DEBT                 -    5,081           9,834    9,834     5,081

OTHER INCOME, net    (873)  (1,303)         (1,220)  (2,093)   (2,242)

INTEREST EXPENSE    18,539    4,459          14,498   33,037     7,181
                  -------- -------- --------------- ------------------

INCOME (LOSS)
 BEFORE INCOME
 TAXES               8,839  (2,988)         (8,747)       92    14,210

PROVISION FOR
 (BENEFIT FROM)
 INCOME TAXES        2,869    2,826         (2,898)     (29)     7,498
                  -------- -------- --------------- ------------------

NET INCOME (LOSS) $  5,970 $(5,814) $       (5,849) $    121 $   6,712
                  ======== ======== =============== ==================


PAETEC Holding Corp. and Subsidiaries
Adjusted EBITDA Reconciliation and Free Cash Flow Calculation
(in thousands)

Adjusted EBITDA, as defined by PAETEC, represents net income before
 interest, provision for taxes, depreciation and amortization, change
 in fair value of Series A convertible redeemable preferred stock
 conversion rights, stock-based compensation, and
 integration/restructuring costs, and, with respect to pro forma
 adjusted EBITDA, loss related to investment in ETV. PAETEC's adjusted
 EBITDA is a non-GAAP financial measure used by PAETEC's management,
 together with GAAP measures such as revenue and cash flows from
 operations, to assess PAETEC's historical and prospective operating
 performance. Management uses adjusted EBITDA to enhance its
 understanding of PAETEC's core operating performance, which
 represents management's views concerning PAETEC's performance in the
 ordinary ongoing and customary course of its operations.

Management also uses this measure to evaluate PAETEC's performance
 relative to that of its competitors. This financial measure permits a
 comparative assessment of PAETEC's operating performance, relative to
 the company's performance based on its GAAP results, while isolating
 the effects of certain items that may vary from period to period
 without any correlation to core operating performance or that vary
 widely among similar companies. The table below sets forth, for the
 periods indicated, a reconciliation of the differences between
 adjusted EBITDA and net (loss) income, as net (loss) income is
 calculated in accordance with generally accepted accounting
 principles:


                     Three Months    Three Months       Six Months
                    Ended June 30,  Ended March 31,   Ended June 30,
                  ----------------- ----------------------------------
                    2007     2006        2007         2007     2006
                  -------- -------- --------------- ------------------

Net income (loss) $  5,970 $(5,814) $       (5,849) $    121 $   6,712
Add back non-
 EBITDA items
 included in net
 income (loss):
  Depreciation
   and
   amortization     20,932    8,586          13,153   34,085    16,179
  Interest
   expense, net
   of interest
   income           17,648    3,778          13,264   30,912     5,977
  Provision for
   (benefit from)
   income taxes      2,869    2,826         (2,898)     (29)     7,498
                  -------- -------- --------------- -------- ---------
EBITDA              47,419    9,376          17,670   65,089    36,366
                  -------- -------- --------------- -------- ---------

Change in fair
 value of Series
 A convertible
 redeemable
 preferred stock
 conversion right        -  (5,281)               -        -  (10,777)
Stock-based
 compensation        3,301      960           6,584    9,885     1,892
Loss on
 extinguishment
 of debt                 -    5,081           9,834    9,834     5,081
Leveraged
 recapitalization
 costs                   -   14,993               -        -    14,993
Integration/
 restructuring
 costs               1,730        -             105    1,835         -
                  -------- -------- --------------- -------- ---------
Adjusted EBITDA   $ 52,450 $ 25,129 $        34,193 $ 86,643 $  47,555
                  ======== ======== =============== ======== =========


Purchases of
 property &
 equipment          20,987    9,844          12,859   33,847    17,336
                  -------- -------- --------------- -------- ---------

Free cash flow,
 as defined       $ 31,463 $ 15,285 $        21,334 $ 52,797 $  30,219
                  ======== ======== =============== ======== =========
PAETEC Holding Corp. and Subsidiaries
Free Cash Flow Reconciliation
(in thousands)

Free cash flow, as defined by PAETEC, consists of adjusted EBITDA less
 capital expenditures (purchases of property and equipment).  Free
 cash flow, as defined by us, is not a financial measurement prepared
 in accordance with accounting principles generally accepted in the
 United States of America, or  "GAAP."

PAETEC has included data with respect to free cash flow because its
 management believes free cash flow provides a measure of the cash
 generated by the company's operations before giving effect to non-
 cash accounting charges, changes in operating assets and liabilities,
 acquisition-related items, tax items and similar items that do not
 directly relate to the day-to-day cash expenses of the company's
 operations and after application of capital expenditures. PAETEC's
 management uses free cash flow to monitor the effect of the company's
 daily operations on its cash reserves and its ability to generate
 sufficient cash flow to fund PAETEC's scheduled debt maturities and
 other financing activities, including potential refinancings and
 retirements of debt, and other cash items.

PAETEC's management believes that consideration of free cash flow
 should be supplemental, however, because free cash flow has
 limitations as an analytical financial measure. These limitations
 include the following:

-- free cash flow does not reflect PAETEC's cash expenditures for
 scheduled debt maturities and other fixed obligations, such as
 capital leases, vendor financing arrangements and the other cash
 items excluded from free cash flow;

-- free cash flow is subject to variability on a quarterly basis as a
 result of the timing of payments made or received related to accounts
 receivable, accounts payable and other current operating assets and
 liabilities; and

-- free cash flow may be calculated in a different manner by other
 companies in PAETEC's industry, which limits its usefulness as a
 comparative measure.

PAETEC's management compensates for these limitations by relying
 primarily on its results under GAAP to evaluate its operating
 performance and by considering independently the economic effects of
 the foregoing items that are not reflected in free cash flow. As a
 result of these limitations, free cash flow should not be considered
 as an alternative to net cash provided by operating activities, cash
 used in investing activities, cash provided by (used in) financing
 activities or change in cash and cash equivalents as calculated in
 accordance with GAAP, nor should it be used as a measure of the
 amount of cash available for the payment of dividends or other
 discretionary expenditures.

Following is a reconciliation of free cash flow to net cash provided
 by (used in) operating activities, as such measure is defined by
 GAAP:


                       Three Months    Three Months    Six Months
                          Ended           Ended           Ended
                         June 30,       March 31,       June 30,
                   ------------------- -------------------------------
                     2007      2006       2007       2007      2006
                   --------- --------- ----------- -------------------

Free cash flow     $  31,463 $  15,285   $  21,334 $  52,797 $  30,219
  Capital
   expenditures       20,987     9,844      12,859    33,847    17,336
  Interest expense,
   net of interest
   income           (17,648)   (3,778)    (13,264)  (30,912)   (5,977)
  Income tax
   related             (217)     (346)          74     (143)     (929)
  Other                  (4)        49          59        55        68
  Loss on
   extinguishment
   of debt                 -     (826)     (2,000)   (2,000)     (826)
  Leveraged
   recapitalization
   costs                   -  (12,371)           -         -  (12,371)
  Integration/
   restructuring
   costs             (1,730)         -       (105)   (1,835)         -
  Amortization of
   debt issuance
   costs                 555       358         450     1,005       745
  Changes in
   operating assets
   and liabilities     2,619  (11,946)    (44,460)  (41,841)  (17,390)
                   --------- --------- ----------- --------- ---------
Net cash provided
 by (used in)
 operating
 activities        $  36,025 $ (3,731)   $(25,053) $  10,972 $  10,875
                   ========= ========= =========== ========= =========
PAETEC Holding Corp. and Subsidiaries
Pro Forma Condensed Consolidated Statements of Operations
(Based on combination of historical results, without adjustment)
(in thousands)

                      Three Months    Three Months      Six Months
                     Ended June 30,  Ended March 31,  Ended June 30,
                   ----------------- ---------------------------------
                     2007     2006        2007        2007     2006
                   -------- -------- -------------- -------- ---------
TOTAL REVENUE       274,469  252,296        267,576  542,045   495,868

COST OF SALES
 (exclusive of
 depreciation and
 amortization
 shown separately
 below)             128,802  122,948        125,958  254,760   240,596

SELLING, GENERAL
 AND
 ADMINISTRATIVE
 EXPENSES
 (exclusive of
 depreciation and
 amortization
 shown separately
 below and
 inclusive of
 stock-based
 compensation)       96,500   91,885        100,109  196,609   182,704
INTEGRATION/
 RESTRUCTURING
 COSTS                1,730        -          1,919    3,649         -
LEVERAGED
 RECAPITALIZATION
 COSTS                    -   14,993              -        -    14,993
DEPRECIATION AND
 AMORTIZATION        20,932   20,758         22,335   43,267    40,544
                   -------- -------- -------------- -------- ---------
INCOME FROM
 OPERATIONS          26,505    1,712         17,255   43,760    17,031
CHANGE IN FAIR
 VALUE OF SERIES A
 CONVERTIBLE
 REDEEMABLE
 PREFERRED STOCK
 CONVERSION RIGHT         -  (5,281)              -        -  (10,777)
LOSS ON
 EXTINGUISHMENT OF
 DEBT                     -    5,081          9,834    9,834     5,081

OTHER INCOME, net     (873)  (1,303)        (1,594)  (2,467)   (2,242)

INTEREST EXPENSE     18,539    9,326         17,999   36,538    16,593
                   -------- -------- -------------- -------- ---------

INCOME (LOSS)
 BEFORE INCOME
 TAXES                8,839  (6,111)        (8,984)    (145)     8,376

PROVISION FOR
 (BENEFIT FROM)
 INCOME TAXES         2,869    2,826        (2,897)     (28)     7,498
                   -------- -------- -------------- -------- ---------

NET INCOME (LOSS)  $  5,970 $(8,937) $      (6,087) $  (117) $     878
                   ======== ======== ============== ======== =========



PAETEC Holding Corp. and Subsidiaries
Pro Forma Adjusted EBITDA Reconciliation
(Based on combination of historical results, without adjustment)
(in thousands)

The table below sets forth, for the periods indicated, a
 reconciliation of the differences between pro forma adjusted EBITDA
 and pro forma net income (loss), as pro forma net income (loss) is
 calculated based on the combination of historical results of PAETEC
 Holding and its predecessor and of US LEC for such periods.


                      Three Months    Three Months      Six Months
                     Ended June 30,  Ended March 31,  Ended June 30,
                   ----------------- ---------------------------------
                     2007     2006        2007        2007     2006
                   -------- -------- -------------- ------------------

Net income (loss)  $  5,970  (8,937) $      (6,087) $  (117)       878
Add back non-
 EBITDA items
 included in net
 income (loss):
  Depreciation and
   amortization      20,932   20,758         22,335   43,267    40,544
  Interest
   expense, net of
   interest income   17,648    8,645         16,427   34,075    15,389
  Provision for
   (benefit from)
   income taxes       2,869    2,826        (2,897)     (28)     7,498
                   -------- -------- -------------- -------- ---------
EBITDA               47,419   23,292         29,778   77,197    64,309
                   -------- -------- -------------- -------- ---------

Change in fair
 value of Series A
 convertible
 redeemable
 preferred stock
 conversion right         -  (5,281)              -        -  (10,777)
Stock-based
 compensation         3,301    1,412          7,029   10,330     3,060
Loss on
 extinguishment of
 debt                     -    5,081          9,834    9,834     5,081
Leveraged
 recapitalization
 costs                    -   14,993              -        -    14,993
Integration/
 restructuring
 costs                1,730        -          1,919    3,649         -
Loss related to
 investment in ETV        -      674              -        -       674
                   -------- -------- -------------- -------- ---------
Adjusted EBITDA    $ 52,450 $ 40,171 $       48,560 $101,010 $  77,340
                   ======== ======== ============== ======== =========

Purchases of
 property &
 equipment         $ 20,987 $ 16,732 $       18,889 $ 39,877 $  31,916
                   ======== ======== ============== ======== =========


PAETEC Holding has omitted a quantitative reconciliation of forecasted
 2007 adjusted EBITDA amounts included in this release to forecasted
 2007 net income (loss), because forecasted 2007 net income (loss)
 cannot be calculated with reasonable accuracy until, among other
 matters, PAETEC Holding finalizes adjustments under the purchase
 method of accounting for the US LEC merger and until it completes its
 analysis of limitations that may be placed on its ability to use net
 operating loss carryforwards under Section 382 of the Internal
 Revenue Code. The manner in which each of these items is finalized
 may have a material affect on PAETEC Holding's net income (loss) for
 2007.
PAETEC Holding Corp. and Subsidiaries
Selected Financial and Operating Data
( in thousands)


                                       June 30, 2007 December 31, 2006
                                       ------------- -----------------
Consolidated Balance Sheet Data:
(in thousands)
Cash and cash equivalents               $     84,456  $         46,885
Accounts receivable, net                     138,014            79,740
Property and equipment, net                  291,273           167,566

Accounts payable                        $     38,999  $         27,321
Other accrued expenses                        84,790            43,824
Current portion of long-term debt              5,072             2,856
Long-term debt                               793,026           370,930


Operating Data
(as of period end):
Geographic markets served                         52                29

Number of switches deployed                       40                13

Total digital T1 transmission lines
 installed                                   110,473            52,371

Total access line equivalents
 installed                                 2,651,352         1,256,904

Total employees                                2,258             1,312

    CONTACT: Media:
             PAETEC
             Chris Muller, 585-340-8218
             chris.muller@paetec.com
             or
             Edelman
             Michael McCullough, 404-832-6782
             michael.mccullough@edelman.com
             or
             Investors:
             PAETEC
             Tom Morabito, 585-340-5413
             tom.morabito@paetec.com

    SOURCE: PAETEC Holding Corp.