| Business | Phone |
| Ane Communication 2934 Telegraph Ave, Oakland 94609 | (510) 208-2140 |
| Apex Telecom 113 10th St, Oakland 94607 | (510) 251-2771 |
| Bay Telephone Co 944 Market St, Oakland 94607 | (510) 547-2000 |
| Deluxe Telephone Svc Oakland 94612 | (510) 444-0653 |
| Destiny 2000 4707 Telegraph Ave, Oakland 94609 | (510) 655-7212 |
| Executive Phone Svc Oakland 94612 | (510) 452-1006 |
| G Solutionz Inc Oakland 94612 | (510) 832-3360 |
| Mass-Tel Communications Oakland 94612 | (510) 496-1000 |
| Mci 1587 Franklin St, Oakland 94612 | (510) 465-3274 |
| Oakland Telecom Access Center One 720 2nd St, Oakland 94607 | (510) 763-4886 |
| Mastec North America Inc 515 23rd Ave, Oakland 94606 | (510) 536-6214 |
| Telemedia Communication Syst 351 Embarcadero, Oakland 94606 | (510) 451-6221 |
| Tucker Technology Inc 436 14th St # 723, Oakland 94612 | (510) 836-0422 |
| Unified Tel Data 1611 Telegraph Ave, Oakland 94612 | (510) 208-3497 |
| Y2ktel.Com Systems 3615 Lincoln Ave, Oakland 94602 | (510) 530-5453 |
| Airgas West 1955 E 223rd St, Oakland 90810 | (310) 233-3310 |