Telecom
- 1-800-COLLECT
- 555-1212 Nationwide Information
- AirNet Communications Corporation
- AirTouch
- Alcatel
- Altigen Communications, Inc.
- Ameritech
- Ameritech SmartPages
- AnyWho
- Artisoft / Computer Telephony Product Group
- American Telephone & Telegraph
- American Telephone & Telegraph - Broadband Internet Services
- Avatar Systems, Ltd.
- Bell Atlantic
- Bell South
- BigBook
- British Columbia, Canada Yellow Pages
- British Telecommunications, PLC - 1
- British Telecommunications, PLC - 2
- Broadband Telephony Buyer's Guide
- CallWare Technologies, Inc.
- Cingular Wireless, LLC
- Cingular Wireless, LLC
- Communications News Magazine
- Cyber 411
- Digital Products Company
- Enhanced911.com
- Ericsson
- Four11 White Pages
- Frontier Corporation
- GTE Corporation
- GTE SuperPages
- Havliand Telephone Company
- Hello Direct
- Home Wireless Networks
- InfoUSA
- Iridium, LLC
- Kansas Cellular
- Kyocera Wireless Corporation
- LivePerson.com
- Lucent Technologies
- Matrix Telecom, Inc.
- Mid-Maine Communications
- MCI Communications
- MCI WorldCom
- The Minacs Group, Inc.
- Mitel Corporation
- Net2Phone
- Nextel Communications
- Nokia Mobile Phones, Inc.
- Nokia Mobile Phones, Inc.
- North American Numbering Plan Administration
- Only Yellow Pages
- Pacific Bell
- Phone.com
- Premiere Technologies, Inc.
- Primus Telecommunications, Inc.
- Quintus Corporation
- Qwest Communications - 1
- Qwest Communications - 2
- Rainier Group
- SBC Communications, Inc.
- SkyTel
- Somerset Telephone Company
- Sounding Board Magazine
- Southwestern Bell
- Sprint
- Sprint PCS
- Telamon Corporation
- Telcordia Technologies, Inc.
- Telecommunications Research & Action Center
- Teligent, Inc.
- Tribal Voice
- US West
- Var Tec Telecom
- VoiceNet
- WhoWhere?
- Wildfire Communications, Inc.
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