| Business | Phone |
| Clear Signal Communications 1832 Soscol Ave # 112, Napa 94559 | (707) 254-1200 |
| Napa Phone Center 1209 1st St, Napa 94559 | (707) 257-7177 |
| Communications Networks Napa 94559 | (707) 299-3800 |
| William Hand 1 Silver Maple Ct, Napa 94558 | (707) 226-7251 |
| Pac-West Telecomm Inc 211 Gateway Rd W # 206, Napa 94558 | (707) 261-0000 |
| Redmond Communications Inc 1160 Cayetano Dr, Napa 94559 | (707) 257-8898 |
| Straughn Communications Inc 1035 3rd Ave, Napa 94558 | (707) 255-1448 |
| Valley Comm 1009 Headlands Dr, Napa 94558 | (707) 966-2712 |