1 EXHIBIT 12 NETWORK PLUS CORP. COMPUTATION OF RATIOS RATIO OF EARNINGS TO COMBINED FIXED CHARGES YEAR ENDED DECEMBER 31, ------------------------------------------------- 1995 1996 1997 1998 1999 ---- ---- ---- ---- ---- EARNINGS Net income (loss) before income taxes ........................... $4,007 $1,475 $(3,149) $(5,289) $(31,893) Combined fixed charges ............ 207 542 801 3,899 15,547 ------ ------ ------- ------- -------- Total Earnings .............. $4,214 $2,014 $(2,348) $(1,390) $(16,346) COMBINED FIXED CHARGES Interest expense .................. $ 40 $ 313 $ 557 $ 1,474 $ 3,804 Preferred stock dividends and accretion of issuance costs and discount ........................ -- -- -- 2,005 10,725 Interest portion of operating lease rentals ......................... 167 229 244 420 1,018 ------ ------ ------- ------- -------- Total Combined Fixed Charges ................... $ 207 $ 542 $ 801 $ 3,899 $ 15,547 RATIO OF EARNINGS TO COMBINED FIXED CHARGES .......... 20.4x 3.7x (2.9)x (0.36)x (1.05)x