136 ausgewählt
- Nicht ausgefüllt
- S.N.P.T Comores
- S.T.E.
- Sabena
- Sachdeva
- Safaricom
- Sakha Telecom - Yakutia
- Sakhalinsvyaz
- Sam's Club
- Samandar
- Samaplast
- Sankt Petersburg Taxophones
- Sat Link 3000
- Satel
- Satelindo
- Satellite Card
- Saudi Telecom Company (STC)
- Savonlinnan
- Schlumberger
- SDI
- Sea King Blue
- Seabird
- Seasons
- Seethru
- Seghwaert
- Self Copy
- Sepa Téléphonique
- Sepatel
- Sercomtel
- Serome
- Servei de Telecommunicacions d' Andorra
- Service Center
- Setar
- Setcall
- Setel
- SFR
- Shaheen
- Shanda
- Shark
- Shell Gabon
- Siemens
- Sierra Leone National Telecommunications Company
- Silja Line
- Silverline
- Síminn
- Simmini
- Simyo
- Singapore tele
- Singapore Telecom
- Sint Lucas
- Sistelcom
- Sistema Telebrás
- Sistema Telebras 00
- SIT
- SK Telecom
- SK Telink
- Sky
- Sky Telcom
- SKY Telecom
- Skybox
- Skytelcard
- Slovak Telecom
- Slovenské Telekomunikácie
- Smart
- Smart Ingenierie
- Smartalk
- Smartalk Teleservices, Inc.
- SmarTel
- Snow
- SNS Bank
- Socatel
- Socati
- Società Italiana per l'Esercizio Telefonico
- Société des télécommunications du Mali
- Sodeco
- Sol Telecom
- Solomon Telekom Company Limited
- Sonatel Mobiles
- Sonatel Senegal
- Sonema
- Sonera
- Sonic
- Sotel Tchad
- Sotelgui
- Southern New England Bell
- SpainTalk
- Spark Telecom
- Sparkasse Aachen
- Speciale Afrique
- Speed
- Speedial
- Sport: Tafeltennis
- Sprint
- Sprint Card
- Sprint Communications
- SPT Telecom
- Sri Lanka Telecom
- SSC
- SSI International
- St. Maarten - Cellular One
- St. Maarten - InterCard
- St. Maarten - Tel Cell
- St.Eustatius Telephone Company
- Staatsdrukkerij en Uitgeverij
- Stadtverwaltung Düsseldorf
- Star Telecom
- Starcardz
- StarHub
- Starlight Communications Uganda
- Starphone
- Startec
- STARxtra
- State of Kuwait Ministry Of Communications
- Station 11
- STD & IDD
- Steden: Mallorca
- Stelmad S.A.
- Stena Line
- Sun Telecom
- Sunday
- Sunrise
- Super Asia
- Super Save
- Super telecom
- Super-plus
- Swazi Telecom
- Swaziland Post and Telecommunications Corporation
- Swiftcall
- Swiss Telecom PTT
- Swisscom
- Swisscom AG
- Swisscom fixnet
- Swisscom mobile
- Switch Telecomunications
- Switchback
- Switchcom
- Syarikat Telekom Malaysia Berhad