| CoID | Company | Type | Status | States Served | 24X7 Phone |
|---|---|---|---|---|---|
| ZMS | Voyant Communications LLC - CANCELLED | AZ | CA | CO | GA | ID | IL | IN | IO | KS | KY | LA | MI | MN | MS | MO | NE | ND | OH | SD | TN | UT | WA | WI | WY | C | A | 888-217-6323 |
| ZNGO | Zingo Telecom, Inc.(Cancelled) | Reseller | C | All | 941-329-6557 |
| ZONIT | Zonitel Solutions | VoIP Reseller | A | USA - Nationwide | 833-966-4835 |
| ZOOM | Zoom Video Communications Inc. | VoIP Reseller VoIP Provider | A | USA - Nationwide | 252-374-3716 |
| ZOOM1 | Zoombak LLC (CANCELLED) | Wireless/Cellular/PCS | C | US | 866-951-0101 |
| ZTBOM | Zurcher Tire | PBX/PS911/Shared Tenant | A | IL | IN | IO | MI | MO | 260-692-0381 |
| ZTEL | Z-Tel Communications (CANCELLED) | CLEC | C | CA, NV | 800-275-0014 |
| ZYFX | Zyfexx Inc. | VoIP Provider | A | KY | OH | WV | 740-456-0839 |
| ZYIS | Zyis Digital - CANCELLED | 9-1-1 Admin-CPE ALI (9-1-1 Jurisdiction/PSAP ONLY) PBX/PS911/Shared Tenant VoIP Reseller | C | FL | 954-280-8324 |