| Business | Phone |
| Bay Equipment Exchange 228 Waverley St, Palo Alto 94301 | (650) 326-7600 |
| Communications Standards 757 Greer Rd, Palo Alto 94303 | (650) 494-0255 |
| Danger Research 3101 Park Blvd, Palo Alto 94306 | (650) 323-9700 |
| Telematica Inc 365 Forest Ave, Palo Alto 94301 | (650) 463-1777 |
| Ntt 250 Cambridge Ave # 104, Palo Alto 94306 | (650) 617-0320 |
| Platinum Telecommunications 230 S California Ave # 212, Palo Alto 94306 | (650) 838-9980 |