| Business | Phone |
| Wired Communications Inc 157 Brentwood Dr, San Francisco 94080 | (650) 952-2728 |
| Idex Global Svc 160 Samsome St # 6, San Francisco 94104 | (415) 249-3400 |
| Telephone Services Of Ca San Francisco 94103 | (415) 558-9600 |
| Telworld Communication 2710 42nd Ave, San Francisco 94116 | (415) 682-7325 |