| Business | Phone |
| Mohr's Telephone Secretarial 1728 Jefferson St, Napa 94559 | (707) 255-4300 |
| Connections Communication Svc Napa 94558 | (707) 265-4800 |
| Direct Line Tele Response Napa 94558 | (707) 255-7780 |
| Napa-Sonoma Communications 175 Jefferson St, Napa 94559 | (707) 455-3545 |