| Company | Now Known As | Last Known Street Address | |
|---|---|---|---|
| Z-Tel Communications, Inc.* | |||
| Z-TEL, INC. | |||
| Zap Telecom (USA) Ltd., LLC | |||
| Zayo Bandwidth Northeast Sub LLC | n/a | 901 Front St Suite 200 Louisville CO 80027 | |
| Zayo Bandwidth Northeast, LLC | 400 Centennial Parkway Suite 200 Louisville CO 80027 | ||
| Zayo Bandwidth, LLC | Zayo Group, LLC | 1805 29th Street STE 2050 Boulder CO 80301 | |
| Zenex Long Distance, Inc. | |||
| ZenFi Networks, Inc | ZenFi Networks, LLC | 90 White Street New York New York 10013 | |
| Zeptel Communications, Inc. | |||
| ZEUS TELECOMMUNICATIONS, LLC | N/A | P.O. BOX 155 TRENTON TX 75490 | |
| Zip Call, L.L.C. | |||
| Zipcall, LLC | |||
| Zone Telecom, Inc. | ANZ Communications 3130 Pleasant Run Springfield IL 62711 | ||
| Zone Telecom, LLC | 3130 Pleasant Run Springfield IL 62711 | ||
| Zoom-i-Net Communicatios, Inc | 14170 Clubhouse Road Gainesville VA 20155 | ||
| ZTELEPHONY, LLC d/b/a Worldnet | 9211 Irvine Boulevard Irvine CA 92618 | ||