- Tel America
- Tel/Talk Communications
- Tele Comm Svc Group
- Tele Consulting Svc
- Tele Management Svc Inc
- Tele-Center Inc
- Tele-Savers
- Telecare Inc
- Teleco Express
- Telecom America Corp
- Telecom Consulting Group
- Telecom Network System Intl
- Telecom USA
- Telecom USA
- Telecommunications Group
- Teledial America
- Teleglobe
- Teleglobe
- Telegroup
- Telephone Road
- Telintel ITSP
- Telintel ITSP
- Telintel Limited
- Telintel Limited
- Tell-America
- Telliss LLC
- Telsec Inc
- Telway Communications
- Tenn-Tel Inc
- Tex-Link Communications
- Texas Communications
- Total Communications Svc
- Touch 1 Communications Inc
- Touch Tone Telecom
- Touch Tone Telecom Inc
- Touchtone Communications
- Transglobal Communication
- Transitel
- Travel Link Communications
- TRC Telecom Inc
- Tri Link Telemanagement
- Trial Site Svc Inc
- TRIO
- TRIO
- Tru Voice Communications
- TSL Net
- TTI
- U S Fibercom Inc
- U S Link
- U S Long Distance
- U Tel Communications
- UCN
- Unicom Communications
- United Communications Inc
- United Services Telephone LLC
- Us Communications
- Us Lec Of Virginia LLC
- Us Sprint
- USA Teleco
- USA-Tel Communication Co
- USLD
- USLD
- USLD
- USLE Cof North Carolina Inc
- UTI
- UUNET
- Valerius Communications Inc
- Value Net Enterprises Inc
- Valutel Communications
- Vartec
- Vartec Telecom-Flint Inc
- Velocity Communications Corp
- VGM Telecommunication
- Vircom Services
- Voice Connection Inc
- Voice Connections
- Wahoo Communications
- Waller Creek Communications
- Wan Services Inc
- WCS Telecom
- WCTA Long Distance
- Weaver Associates
- Webster-Calhoun Long Distance
- Webxites
- West End Communications Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Inc
- Westel Long Distance Comm
- Westel Long Distance Comms
- Wholesale Telephone Inc
- Widmoore Communications
- Williams Telecommunications
- Williams Telecommunications
- Williams Telecommunications
- Williams Telecommunications Co
- Wireless Warehouse
- Wireless Warehouse
- Wireless Warehouse
- Work Site Solutions-J Benefits
- World Com
- World Com
- Worldcom
- Worldcom
- Worldquest Network Inc
- WXC Long Distance
- X 2 Communications
- X O Communications Inc
- X4 Communications
- Xtreme Technologies
- ZCD Transportation
- ZCD Transportation
- ZIRCA.COM
