- Allegiance Telecom Inc
- Allegiance Telecom Inc
- Answer Mti
- Answer Mti
- Bestel USA Inc
- Bestel USA Inc
- Capitol Telecommunications Inc
- Capitol Telecommunications Inc
- CHOICE.COM
- CHOICE.COM
- DFW Direct
- DFW Direct
- Telco-Data
- Telco-Data
- Telcordia Technologies
- Telcordia Technologies
- Voice Power Telcom
- Voice Power Telcom
- Xspedius Management Co
- Xspedius Management Co
