| Business | Phone |
| California Wireless 830 E Vista Way # 110, Vista 92084 | (760) 726-1996 |
| Cingular Wireless 1580 S Melrose Dr # 111, Vista 92081 | (760) 727-2299 |
| Denso Wireless Systems America 3250 Business Park Dr, Vista 92081 | (760) 734-4600 |
| Secure Wireless 1185 Park Center Dr, Vista 92081 | (760) 727-0601 |
| Phase 4 Wireless 714 Olive Ave, Vista 92083 | (760) 560-0537 |
| Nextel Retail 30 Main St # G150, Vista 92083 | (760) 630-4315 |
| First Choix Wireless 545 S Santa Fe Ave, Vista 92083 | (760) 940-0963 |