TABLE 29 PRESUBSCRIBED TELEPHONE LINES BY CARRIER DEC 87 DEC 88 DEC 89 DEC 90 DEC 91 DEC 92 DEC 93 DEC 94 TOTAL NUMBER OF CARRIERS WITH PRESUBSCRIBED LINE 223 253 302 325 388 414 436 511 QUALIFYING COMPANIES 1/ AT&T ################################################################ MCI ################################################################ SOUTHERNET 183,769 215,384 TELECOM*USA 646,084 TELECONNECT 156,614 247,042 SPRINT ################################################################ LA CONEXION FAMILIAR, INC. 71,327 LONG DISTANCE/USA 85,680 LDDS 2/ 66,576 116,864 332,244 482,043 ################ ADVANCED TELECOM CORP. (ATC) 396,319 355,518 333,152 440,961 AMERICAN NETWORK 95,926 CLAYDESTA DIGITAL 71,794 96,914 COM SYSTEMS DBA SUN DIAL 62,773 89,081 118,963 116,326 126,190 ITT 279,549 420,793 412,197 METROMEDIA 215,485 215,181 207,599 515,711 476,128 494,864 MICROTEL 70,273 MID-AMERICAN 96,384 97,526 NTS (NATIONAL TELEPHONE SYS.) 77,667 TELUS/TELTEC SAVING 105,243 125,339 ALLNET 726,974 763,680 677,531 744,452 813,748 859,499 891,577 ######## WILTEL 2/ 87,758 191,076 432,844 960,004 LCI INTERNATIONAL 3/ 92,014 123,748 144,926 186,884 338,496 405,644 638,464 UNITED TELEPHONE 82,602 285,385 513,033 548,303 596,114 639,341 648,131 572,010 CABLE & WIRELESS 236,000 304,976 394,020 422,534 466,935 513,419 529,398 524,153 TELEFONICA LARGA DISTANCIA 375,694 419,293 432,701 442,922 441,467 TOUCH-1 LONG DISTANCE 110,929 98,044 320,571 FRONTIER COMMUNICATIONS 4/ 83,383 113,329 171,198 190,382 252,495 279,304 283,372 ALASCOM 152,040 161,572 168,095 182,341 203,105 209,850 216,964 226,974 COMMUNIQUE TELECOM 106,892 148,865 189,781 188,295 ONCOR COMMUNICATIONS, INC. 87,593 144,511 161,085 INTERNATIONAL TELECHARGE 95,252 83,725 72,813 COMMUNICATIONS TELESYSTEMS INT'L (CTI) 156,055 COMMONWEALTH LONG DISTANCE 103,684 113,072 147,045 LONG DISTANCE SAVERS 77,568 87,687 112,905 141,697 WEST COAST TELECOM 96,539 137,489 AMERICAN SHARECOM 132,946 VARTEC TELECOM INC. 117,692 122,991 BUSINESS TELECOM 79,396 121,822 U.S. LONG DISTANCE, INC. 116,602 SONIC COMMUNICATIONS 114,041 U.S. SIGNAL CORP (TELEDIAL AMERICA) 5/ 77,096 109,071 114,026 ATX TELECOMMUNICATIONS 82,303 104,971 107,979 SOUTHERN NEW ENGLAND TEL (SNET) 105,855 TEL-AMERICA 94,292 90,570 100,213 101,968 85,801 92,860 94,114 105,053 GENERAL COMMUNICATIONS 89,338 83,468 86,089 88,360 93,233 97,798 99,911 102,528 CINCINNATI BELL 67,689 79,182 90,841 93,659 102,163 INTER CONTINENTAL TELEPHONE 99,033 LINTEL (LINCOLN) 93,352 94,031 96,966 99,594 94,183 93,427 90,146 85,496 SCHNEIDER COMMUNICATIONS 71,059 77,699 84,141 EXCEL TELECOMMUNCIATIONS, INC. 75,543 ACC LONG DISTANCE 74,482 TELESPHERE NETWORK 111,386 PUERTO RICO TEL-COM 99,821 TOTAL QUALIFYING CAR################################################################ NON-QUALIFYING CARRI################################################################ TOTAL INDUSTRY PRESUB################################################################ PRESUBSCRIBED LINES MARKET SHARE AT&T 83.7% 80.6% 77.4% 75.6% 75.0% 73.0% 71.2% 70.0% MCI 8.2% 9.8% 11.7% 13.2% 13.5% 14.5% 15.3% 14.8% SPRINT 4.8% 5.8% 6.4% 6.6% 6.2% 6.4% 6.5% 6.4% LDDS 0.1% 0.1% 0.2% 0.3% 1.2% 1.3% OTHER QUALIFYING CARRIERS 2.3% 2.8% 3.3% 3.2% 3.3% 4.1% 3.8% 5.3% NON-QUALIFYING CARRIERS 1.0% 1.0% 1.2% 1.4% 1.7% 1.7% 2.0% 2.1% ANNUAL RATES OF GROWTH: AT&T -1.4% -0.8% 0.7% 1.4% -0.3% 0.5% 2.2% MCI 21.6% 23.9% 15.8% 5.1% 10.0% 8.2% 1.0% SPRINT 23.3% 13.5% 7.1% -4.5% 6.0% 4.0% 2.8% LDDS 75.5% 184.3% 45.1% 263.6% 11.5% OTHER QUALIFYING CARRIERS 27.0% 19.6% 0.8% 6.3% 27.0% -4.3% 44.4% NON-QUALIFYING CARRIERS 6.2% 23.2% 13.8% 25.0% 1.2% 23.7% 11.1% TOTAL INDUSTRY LINES 2.4% 3.3% 3.1% 2.2% 2.5% 2.9% 4.0% 1/ QUALIFYING COMPANIES - DATA IS ONLY SHOWN FOR YEARS IN WHICH THE CARRIER HAD .05% OF OVERALL PRESUBSCRIBED LINES. 2/ LDDS AND WILTEL MERGED ON JANUARY 5, 1995. 3/ NAME CHANGED FROM LITEL, DECEMBER 1994. 4/ NAME CHANGED FROM RCI, DECEMBER 1994. 5/ NAME CHANGED FROM TELEDIAL AMERICA, DECEMBER 1994.