| Business | Phone |
| Competitive Communications 3751 Merced Dr # A, Riverside 92503 | (951) 687-6100 |
| Ibs Sales Inc 6892 Doolittle Ave # F, Riverside 92503 | (951) 352-7711 |
| Pac-West Telecomm Inc Riverside 92501 | (951) 344-0000 |
| Deaf & Disabled Telecomms 6370 Magnolia Ave, Riverside 92506 | (951) 342-3317 |
| Hi-Tech Telecommunications 5053 Lamart Dr, Riverside 92507 | (951) 684-0351 |
| Telemex International 4111 Buchanan Ave, Riverside 92503 | (951) 284-1464 |