| Business | Phone |
| A Aaa Telepresence 5275 Joan Ct, San Diego 92115 | (619) 287-2577 |
| A Bell Telecom San Diego 92103 | (619) 293-0330 |
| Adcom-Bhs San Diego 92115 | (619) 286-5633 |
| All American Public Telephone 2321 Morena Blvd # A, San Diego 92110 | (619) 276-7312 |
| Aos Communications 747 Turquoise St, San Diego 92109 | (858) 488-4100 |
| Associated Technical College 1445 6th Ave, San Diego 92101 | (619) 234-2181 |
| Atel Communications Inc 8447 Miramar Mall # A, San Diego 92121 | (858) 646-4600 |
| Automated Interface Inc 7121 Engineer Rd, San Diego 92111 | (858) 571-3400 |
| Avaya Inc 17150 Via Del Campo, San Diego 92127 | (858) 676-3600 |
| Avaya Inc 9645 Granite Ridge Dr, San Diego 92123 | (858) 874-1500 |
| Axesstel 6815 Flanders Dr # 210, San Diego 92121 | (858) 625-2100 |
| Axesstel Inc 15373 Innovation Dr, San Diego 92128 | (858) 613-1500 |
| Best American Technology 2802 Juan St # 27, San Diego 92110 | (858) 546-9010 |
| Bordercomm Inc 10050 Via De La Amistad # 2482, San Diego 92154 | (619) 710-0631 |
| Bulter Telecom 1125 9th Ave, San Diego 92101 | (619) 239-9756 |
| Business Telecom Solutions 9731 Siempre Viva Rd, San Diego 92154 | (619) 671-0177 |
| Computergods.Com 7574 Trade St, San Diego 92121 | (858) 271-0327 |
| Comsel Communications 7940 Silverton Ave # 106, San Diego 92126 | (858) 547-3800 |
| Comtek Data Com San Diego 92102 | (619) 266-1000 |
| Coronado Telecom 3760 Convoy St, San Diego 92111 | (858) 974-5000 |
| Cox Communications 750 B St, San Diego 92101 | (619) 266-5003 |
| Daycom Systems Inc 6759 Mesa Ridge Rd # 150, San Diego 92121 | (858) 457-3882 |
| Delta-V Communication Inc San Diego 92128 | (858) 451-6530 |
| Digital Transport 7914 Ronson Rd # A, San Diego 92111 | (858) 751-0820 |
| Enhanced Information Svc 3949 Ruffin Rd, San Diego 92123 | (858) 244-2000 |
| Excite Telecom 2605 Camino Del Rio S # 101, San Diego 92108 | (619) 294-4300 |
| Express Communications 2123 Garnet Ave, San Diego 92109 | (858) 270-0546 |
| Flagship 3443 Camino Del Rio S, San Diego 92108 | (619) 285-8410 |
| Nec Business Network Solutions 7540 Metropolitan Dr # 112, San Diego 92108 | (619) 725-7900 |
| A-1 Business Telcom Systems San Diego 92109 | (858) 274-9999 |
| Aci Communications 8380 Miramar Mall, San Diego 92121 | (858) 643-9266 |
| Advanced Communications San Diego 92123 | (858) 565-4444 |
| Advantagedealer.Com 10509 Vista Sorrento Pkwy, San Diego 92121 | (858) 373-3333 |
| Sonant Corp 6215 Ferris Sq # 220, San Diego 92121 | (858) 623-8180 |
| Anthony's Communication Svc 4401 Twain Ave # 1, San Diego 92120 | (619) 584-7100 |
| Axesstel Inc 6815 Flanders Dr # 210, San Diego 92121 | (858) 625-2100 |
| Rainbow Telecommunications Inc 8715 Lepus Rd, San Diego 92126 | (858) 271-8324 |
| Quintron Telephone Systems 4340 Viewridge Ave # B, San Diego 92123 | (858) 560-7272 |
| Primary Products 3337 Stellar Dr, San Diego 92123 | (858) 576-1139 |
| Primary Telecom 3337 Stellar Dr, San Diego 92123 | (858) 576-7474 |
| Practel Communication Inc 4645 Ruffner St, San Diego 92111 | (858) 268-0808 |
| Platinum Networks Inc 11211 Sorrento Valley Rd, San Diego 92121 | (858) 458-0314 |
| Columbia Pacific Telesystems 9715 Carroll Centre Rd # 106, San Diego 92126 | (858) 578-0404 |
| Comm World 9606 Tierra Grande St # 106, San Diego 92126 | (858) 549-5000 |
| Communications Plus 1675 Morena Blvd # 100, San Diego 92110 | (619) 276-3000 |
| Commworld Of San Diego-North 9606 Tierra Grande St, San Diego 92126 | (760) 730-3200 |
| Phone All 3656 Curlew St, San Diego 92103 | (619) 294-7220 |
| Phone Pros San Diego 92115 | (619) 583-1776 |
| Phone Supplements Inc 7380 Clairemont Mesa Blvd 109b, San Diego 92111 | (858) 271-7878 |
| Phone Ware Inc 8902 Activity Rd # A, San Diego 92126 | (858) 459-3000 |
| Coover Communications 5663 Balboa Ave # 359, San Diego 92111 | (858) 268-4265 |
| Paul Mc Clure Communication 8972 Kobe Pl, San Diego 92123 | (619) 223-6135 |
| Pc2 Telecom 4609 Convoy St # B, San Diego 92111 | (858) 277-1967 |
| Pacific Coast Communications 6338 Riverdale St, San Diego 92120 | (619) 308-2100 |
| Pacific Coast Teleco 4422 Glacier Ave # A, San Diego 92120 | (619) 280-1222 |
| Pacific Tel-Data 650 Robinson Ave, San Diego 92103 | (619) 692-3969 |
| Pacific Telecom 10908 Technology Pl, San Diego 92127 | (858) 451-3085 |
| Packet Telecom Solutions 9265 Activity Rd, San Diego 92126 | (858) 578-2400 |
| Data Tel Communications Inc 10855 Sorrento Valley Rd # 102, San Diego 92121 | (858) 487-8000 |
| Northstar Wireless Distrs Inc 6650 Lusk Blvd # B108, San Diego 92121 | (858) 550-3988 |
| Newton Communications & Ntwrk San Diego 92123 | (858) 576-0833 |
| Nexus Intregration Svs Inc 7350 Opportunity Rd, San Diego 92111 | (858) 676-3600 |
| North Coast Communications 8687 Ara Pl, San Diego 92126 | (858) 689-0689 |
| Miramar Telephone Co San Diego 92126 | (858) 693-1700 |
| Medical Utility Co San Diego 92103 | (619) 757-1475 |
| Mega Computer Corp 17150 Via Del Campo, San Diego 92127 | (858) 376-8688 |
| Giant Step Communications 9974 Scripps Ranch Blvd # 282, San Diego 92131 | (858) 549-2220 |
| Ingrid Greenberg San Diego 92105 | (619) 992-2141 |
| Greg Griffith Communications 3717 Balboa Ter, San Diego 92117 | (858) 581-2039 |
| Hci Inc 5555 Magnatron Blvd, San Diego 92111 | (858) 571-8558 |
| Inter-Tel Technologies Inc 9303 Chesapeake Dr, San Diego 92123 | (858) 292-0055 |
| International Phone Card Center 1069 6th Ave, San Diego 92101 | (619) 237-5464 |
| Interpac Telecommunications Co 4444 Glacier Ave, San Diego 92120 | (619) 280-2797 |
| Itt Marketing 3970 Sorrento Valley Blvd # D, San Diego 92121 | (858) 546-8899 |
| Level 3 Communications Inc 8929 Aero Dr, San Diego 92123 | (858) 292-2100 |
| Kayce Communications Group Inc 4510 Executive Dr, San Diego 92121 | (858) 431-8439 |
| Kls Systems 10457 Roselle St # C, San Diego 92121 | (858) 576-1333 |
| X Digital Systems 9727 Pacific Heights Blvd, San Diego 92121 | (858) 535-2340 |
| Shaun's Telecom 3223 Greyling dr, San Diego 92123 | (619) 559-0985 |