| Business | Phone |
| Apex Wireless Paging 3401 Dale Rd # 132, Modesto 95356 | (209) 578-0783 |
| Comtel Business Telephone Syst 1105 Kansas Ave, Modesto 95351 | (209) 549-4900 |
| E-Z Tel Inc Modesto 95356 | (209) 545-5195 |
| Gst Telecom California Inc 1021 14th St, Modesto 95354 | (209) 527-4775 |
| Pac-West Telecomm Inc 3421 Tully Rd # G1, Modesto 95350 | (209) 554-0000 |
| Paradise Telecommunications 3813 Rubens Cir, Modesto 95356 | (209) 549-0960 |
| Sam Siam Enterprises 3708 Drakeshire Dr, Modesto 95356 | (209) 575-4413 |
| Solid Networks 5809 Stoddard Rd, Modesto 95356 | (209) 543-6200 |