| Business | Phone |
| Universal Telecom 1121 Polk St, San Francisco 94109 | (415) 869-1409 |
| Universal Telecom 401 Capp St, San Francisco 94110 | (415) 641-0435 |
| Blue Chip Telecom Inc 383 Allerton Ave, San Francisco 94080 | (650) 588-2400 |
| California Alliance Telecom 601 Gateway Blvd, San Francisco 94080 | (650) 872-3100 |
| Equant 220 S Spruce Ave, San Francisco 94080 | (650) 583-7817 |
| Executive Phone Svc San Francisco 94080 | (650) 873-8600 |
| Halloo Communications Inc 400 Oyster Point Blvd # 228, San Francisco 94080 | (650) 589-3843 |
| Iometrix 250 E Grand Ave # 50, San Francisco 94080 | (650) 872-4001 |
| Netswitch 400 Oyster Point Blvd # 226, San Francisco 94080 | (650) 583-3066 |
| 88 Telecom Llc 661 Clement St, San Francisco 94118 | (415) 876-0778 |
| A A Discount Phone Systems 2455 23rd Ave, San Francisco 94116 | (415) 664-8000 |
| A Telenet Solutions 275 5th St, San Francisco 94103 | (415) 671-0971 |
| Am-Comm Systems Inc 2398 Pine St, San Francisco 94115 | (415) 674-3100 |
| Aventine Systems Inc 281 Clara St, San Francisco 94107 | (415) 615-0550 |
| Scottel Voice & Data Inc 1105 Grandview Dr, San Francisco 94080 | (650) 875-0450 |
| Searching For The Future 437 Grand Ave, San Francisco 94080 | (650) 952-2756 |
| C Blakeley San Francisco 94109 | (415) 928-4113 |
| Broadwing Communications 650 Townsend St # 200, San Francisco 94103 | (415) 354-8600 |
| Cameron Communications San Francisco 94111 | (415) 773-2222 |
| Coastside Communications 1240 Bush St # 17, San Francisco 94109 | (415) 885-1440 |
| Coatside Communications Inc San Francisco 94109 | (415) 499-3330 |
| Deutsche Telekom San Francisco 94105 | (415) 955-0512 |
| Distributor One 599 3rd St # 301, San Francisco 94107 | (415) 543-6859 |
| Equant 455 Market St, San Francisco 94105 | (415) 357-6000 |
| Executive Phone Svc 2725 Park Dr # 1, San Francisco 33763 | (727) 799-4897 |
| G Solutoinz Inc San Francisco 94109 | (415) 673-0207 |
| Gie Co 1928 Mission St, San Francisco 94103 | (415) 558-8333 |
| Globetele Communications 5350 Mission St, San Francisco 94112 | (415) 841-0347 |
| Idt Telecommunications 17 Pier # 137, San Francisco 94111 | (415) 788-7777 |
| Infinitel 716 Jackson St, San Francisco 94133 | (415) 788-1688 |
| Infinitel Communications Inc 637 Howard St, San Francisco 94105 | (415) 957-1688 |
| Kellee Communications San Francisco Int Airport, San Francisco 94128 | (650) 877-0465 |
| Kellee Communications Inc San Francisco 94122 | (415) 759-0600 |
| Krystal Gift Shop 729 Clay St, San Francisco 94108 | (415) 986-8888 |
| Maynard Communications Group San Francisco 94111 | (415) 693-9100 |
| Mci 945 Clement St, San Francisco 94118 | (415) 750-3883 |
| Media Connections Group San Francisco 94110 | (415) 647-8010 |
| Net 2 Phone 5 Lucerne St # 1, San Francisco 94103 | (415) 351-7370 |
| Pac-West Telecomm Inc San Francisco 94115 | (415) 449-0000 |
| Phone Meister 870 Market St, San Francisco 94102 | (415) 677-9575 |
| Portum Usa 202 Roosevelt Way, San Francisco 94114 | (415) 864-3200 |
| Smart Connect Telecom Inc 1507 Ocean Ave, San Francisco 94112 | (415) 337-1216 |
| Soma Networks 185 Berry St, San Francisco 94107 | (415) 882-6500 |
| Specialty Communications 520 Flood Ave, San Francisco 94112 | (415) 333-9898 |
| Stars & Stripes Telecom Inc San Francisco 94102 | (415) 494-2000 |
| Syner Tel 3450 3rd St # B, San Francisco 94124 | (415) 970-0100 |
| Talk Free Telecom 2255 Van Ness Ave, San Francisco 94109 | (415) 346-9900 |
| Time Warner Telecom 501 2nd St # 200, San Francisco 94107 | (415) 489-0700 |
| Voicepro 120 Montgomery St # 250, San Francisco 94104 | (415) 989-8866 |
| Ipc Information Systems Inc 142 Sansome St # 300, San Francisco 94104 | (415) 544-1800 |
| Verizon Communications 630 Sansome St, San Francisco 94111 | (415) 392-5291 |