- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC
- SBC Ameritech Advanced Data
- SBC Ameritech Advanced Data
- SBC Communications
- SBC Communications Inc
- SBC Communications Inc
- SBC Communications Inc
- SBC Datacom
- SBC Datacom
- SBC Datacomm
- Sbc Digital On Demand
- SBC Long Distance
- SBC Long Distance
- SBC Long Distance
- SBC Long Distance
- SBC Long Distance
- SBC Smart Yellow Pages
- SBC Smart Yellow Pages
- SBC Telecom Inc
- Sbc Wireless
- Schaller Telephone Co
- Schlumberger Inmate Telephone
- Schooley Mitchell Telecom
- Schuykill Mobile Fone Inc
- Sci Global Crossing
- Sci Global Crossing
- Scientific Telecom
- Scientific-Atlanta Inc
- Scio Mutual Telephone Assn
- SCN LLC
- SCN LLC
- Scott County Telephone Co
- Sea Communications
- Searsboro Telephone Co
- Security Telecom
- Security Telecom
- SEI Communications
- Seibert Group
- Seif & Assoc
- Selby's Communications
- Select Connect Communications
- Seminole County Telephone Co
- Seppie Tele Communications
- Sequelle Alliance
- Sewell Electronics
- Shared Communications ATG
- Shared Communications Systems
- Shared Technologies Fairchild
- Shared Technologies Inc
- Sharon & Bergen Telephone Co
- Sharon Telephone
- Sharon Telephone Co
- Sharon Telephone Co
- Sharon Telephone Co
- Sharon Telephone Co
- Sharon Telephone Co
- Sharon Telephone Co
- Sharon Wade
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shawnee Telephone Co
- Shenandoah Personal Comm Co
- Shenandoah Telecommunications
- Shenandoah Telecommunications
- Shenandoah Telephone Co
- Shenandoah Telephone Co
- Sho N Tel & Co
- Shorecall Communications
- Shoreham Long Distance
- Shoreham Telephone Co Inc
- Siemens Communications
- Sierra Nevada Telecom
- Sierra Tel Business Ctr
- Sierra Telephone
- Sierra Telephone
- Sierra Telephone
- Sierra Telephone
- Sierra Telephone
- Signal 1
- Signal Communications Inc
- Signature Communication
- Signature Communication
- Signius Telephone Answering
- Silicon Valley Telecomms
- Silver & Black Telecom
- Silver Star Communications
- Silver Star Communications
- Silver Star Technologies
- Simmons Communications Inc
- Simply Wireless
- Single Source Inc
- Singular Wrless Southern Park
- Siren Telephone
- Siren Telephone Co Inc
- Sita
- SITA In The Americas
- Site Acquisitions Inc
- Site Link LLC
- Sk USA Inc
- SKT Dalton Telephone Co
- SKT Dalton Telephone Co
- Skyline Telephone
- Skyline Telephone Corp
- Skyline Telephone Membership
- Skyline Telephone Membership
- Skyline Telephone Membership
- Skyline Telephone Mmbrshp Corp
- Skylink Inc
- Skylink Inc
- Skynet Communications Inc
- Skyrider Communications
- Skyview Communications Inc
- Slattery's Telephone Co
- Sledge Telephone Co
- Sleepy Eye Telephone Co
- Smart Brothers
- Smart Cellular
- Smart City Networks
- Smart Com Telephone
- Smart Communications-Colorado
- Smart Con Telephone
- Smart Stop
- Smart Tone Communications Inc
- Smartcom Telephone
- Smartphones Technologies
- SMCI
- Smithville Telephone Co
- Smithville Telephone Co
- Smoke Signal Communications
- Snc Communications
- Snc Communications LLC
- Snow Phone
- Sole Phone Card
- Sound Telecommunication Inc
- Source One Communications
- South Arkansas Telephone Co
- South Central Bell
- South Central Bell Phone Co
- South Central Communications
- South Central Rural Telephone
- South Central Rural Telephone
- South Central Telcom
- South Central Telephone Assn
- South East Telephone
- South Park Telephone
- South Plains Telephone Co-Op
- South Plains Telephone Co-Op
- South Slope Co-Op Telephone
- South Slope Coop Comm
- South Western Bell
- Southeast Telephone
- Southeast Telephone Inc
- Southeastern Ip Telephone
- Southeastern Telephone Inc
- Southeastern Telephone Svc Inc
- Southeastern Telephone Svc Inc
- Southeastern Telephone Svc Inc
- Southeastern Telephone Svc Inc
- Southeastern Telephone Svc Inc
- Southern Bell
- Southern Bell Communications
- Southern Bell Corp
- Southern Bell Memory Call
- Southern Bell Telephone
- Southern Bell Telephone
- Southern Montana Telephone Co
- Southern Net
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telcom Network Inc
- Southern Telecom
- Southern Telecom
- Southern Telecom Network Inc
- Southern Telephone Co
- Southern Telephone Co Inc
- Southern Telephone Co Inc
- Southern Telephone Co Inc
- Southern Vermont Telephone
- Southward Exchange Co
- Southwest Arkansas Telephone
- Southwest Communications Inc
- Southwest Oklahoma Telephone
- Southwest Pay Telephone
- Southwest Pay Telephone
- Southwest Phone Cards
- Southwest Tele-Networks
- Southwest Texas Phone Co
- Southwest Texas Telephone
- Southwest Texas Telephone Co
- Southwest Texas Telephone Co
- Southwest Texas Telephone Co
- Southwestern Bell Telephone
- Southwestern Bell Telephone Co
- Southwestern Bell Telephone Co
- Southwestern Bell Telephone Co
- Southwestern Bell Telephone Co
- Southwestern Bell Telephone Co
- Southwestern Telephone Co
- Span Com Svc Tlcmmnctns
- Spanish Phone Directory
- Specialty Intel Inc
- Spectra Communications Group
- Spectral Management
- Spectrotel
- Speedy Phone
- Speedy Reconnect
- Speedy Reconnect
- Speedy Reconnect
- Speedy Reconnect
- Speedy Reconnect
- Speedy Reconnect
- Speedy Reconnect
- Sphera Optical Network
- Spirit Telecom
- Spirit Telecom
- Spring Communications
- Spring Machine & Tool Co Inc
- Spring Seasons Resident Phone
- Spring Street Men's Phone
- Spring Valley Telephone Co Inc
- Springport Telephone Co
- Springville Co-Operative Phone
- Sprint
- Sprint For Barracks Phone
- Sprint Hospitaltiy Group
- Sprint PCS
- Sprint Telephone Svc
- Sprint United Phone Co-Texas
- Sprint United Phone Co-Texas
- Sprint United Telephone
- Sprint United Telephone
- Sprint Yellow Pages
- Sprint-Centel
- Sprint/United Telephone-Fl
- Sprintnet
- Sprintnet
- Sprintnet
- Spruce Knob Seneca Rocks Phone
- SPSI
- SRI Telecom Inc
- St Croix Co LLC
- St John Telephone Co
- St Joseph Tel & Tel Co
- St Paul Co-Op Telephone Assn
- Stanford Telephone Res Svc
- Star Communications
- Star Communications
- Star Solutions
- Star Telecom
- Star Telephone Co Inc
- Star Telephone Membership Corp
- Star Telephone Membership Corp
- Star Wireless Communications
- Star-Comm Technologies Inc
- Starpower Communications
- Starpower Dc
- State Long Distance Telephone
- State Of Alabama Telecomm
- State Of South Dakota Telecomm
- State Of Utah Tlcmmnctns
- State Pre-Pay Telecom
- State Telephone Co
- State Telephone Co
- Stay Away
- Stayton Co-Op Telephone Co
- STC Communications
- STC Telecom Inc
- Stel Telecom
- Sterling Network Svc
- Steve Shop Phone
- Stg International
