| Business | Phone |
| Secc Corp 2819 182nd St, Redondo Beach 90278 | (310) 542-1703 |
| Advanced Telecom 415 Avenue G # D, Redondo Beach 90277 | (310) 540-3890 |
| Gigaphone Inc 501 Paseo De La Playa, Redondo Beach 90277 | (310) 375-0245 |
| Tdsc 310 S Prospect Ave # 3, Redondo Beach 90277 | (310) 316-3773 |
| Telsat Telecomm Redondo Beach 90277 | (310) 798-0084 |