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| Additional Non GAAP Reconciliations March 31, June 30, September 30, December 31, March 31, 2014 2014 2014 2014 2015 Net loss (26,470) $ (21,838) $ (1,952) $ (22,492) $ (10,483) $ Interest expense and other, net 13,956 14,082 13,970 14,253 15,223 Income tax provision (benefit) 363 374 (4,329) (1,152) 351 Depreciation and amortization 46,855 45,615 46,716 47,686 47,264 Stock-based compensation expense 4,943 2,335 2,930 2,392 3,415 Impairment of long-lived assets 5,334 5,437 589 2,974 - Restructuring, acquisition and integration-related costs 4,977 4,908 1,108 9,095 5,372 (Gain) loss from discontinued operations, net of tax (55) (6) - 442 - Purchases of property and equipment (23,384) (25,965) (24,890) (28,624) (17,529) Unlevered Free Cash Flow 26,519 $ 24,942 $ 34,142 $ 24,574 $ 43,613 $ March 31, June 30, September 30, December 31, March 31, 2014 2014 2014 2014 2015 Net cash provided by operating activities 21,306 $ 17,969 $ 62,063 $ 38,657 $ 18,865 $ Income tax provision (benefit) 363 374 (4,329) (1,152) 351 Non-cash income taxes (210) (242) 4,391 (4,530) (185) Interest expense and other, net 13,956 14,082 13,970 14,253 15,223 Amortization of debt discount, premium and issuance costs (1,016) (1,022) (1,029) (1,037) (1,029) Restructuring, acquisition and integration-related costs 4,977 4,908 1,108 9,095 5,372 Changes in operating assets and liabilities 10,437 14,732 (16,918) (2,578) 23,741 Purchases of property and equipment (23,384) (25,965) (24,890) (28,624) (17,529) Other, net 90 106 (224) 490 (1,196) Unlevered Free Cash Flow 26,519 $ 24,942 $ 34,142 $ 24,574 $ 43,613 $ Net cash used in investing activities (23,384) (25,379) (25,390) (28,624) (17,529) Net cash used in financing activities (6,045) (2,651) (5,513) (5,512) (27,416) (in thousands) Three Months Ended EARTHLINK HOLDINGS CORP. Reconciliation of Net Loss to Unlevered Free Cash Flow (in thousands) Three Months Ended EARTHLINK HOLDINGS CORP Reconciliation of Net Cash Provided by Operating Activities to Unlevered Free Cash Flow |