| CoID | Company | Type | Status | States Served | 24X7 Phone |
|---|---|---|---|---|---|
| ZMS | Voyant Communications LLC | AZ | CA | CO | GA | ID | IL | IN | IO | KS | KY | LA | MI | MN | MS | MO | NE | ND | OH | SD | TN | UT | WA | WI | WY | A | A | 888-217-6323 |
| ZNGO | Zingo Telecom, Inc.(Cancelled) | Reseller | C | All | 941-329-6557 |
| ZOOM | Zoom Video Communications Inc. | VoIP Reseller VoIP Provider | A | USA - Nationwide | 415-465-1121 |
| ZOOM1 | Zoombak LLC (CANCELLED) | Wireless/Cellular/PCS | C | US | 866-951-0101 |
| ZTEL | Z-Tel Communications (CANCELLED) | CLEC | C | CA, NV | 800-275-0014 |
| ZYFX | Zyfexx Inc. | VoIP Provider | A | KY | OH | WV | 740-456-0839 |