| Total phone numbers | 76'200'000 |
|---|
| - Swisscom (Schweiz) AG
- | 4874 |
| - Sunrise Communications AG
- | 966 |
| - Salt Mobile SA
- | 539 |
| - UPC Schweiz GmbH
- | 158 |
| - Lycamobile AG
- | 100 |
| - Colt Technology Services AG
- | 83 |
| - Swissphone Wireless AG
- | 61 |
| - Backbone Solutions AG
- | 48 |
| - Nexphone AG
- | 44 |
| - 4z.com S?rl
- | 43 |
| - Netstream AG
- | 43 |
| - Verizon Switzerland AG
- | 43 |
| - Beeone Communications SA
- | 39 |
| - Telecom Liechtenstein AG
- | 39 |
| - VTX Services S.A.
- | 34 |
| - Quickline AG
- | 30 |
| - Peoplefone AG
- | 25 |
| - GIB-Solutions AG
- | 25 |
| - WeMobile SA
- | 24 |
| - Dialoga Servicios Interactivos S.A.
- | 22 |
| - Winet Voicetec Solutions AG
- | 21 |
| - BSE Software GmbH
- | 21 |
| - Ticinocom SA
- | 21 |
| - Premium Routing GmbH
- | 21 |
| - Orange Business Switzerland AG
- | 21 |
| - Voxbone S.A.
- | 21 |
| - Telco Pack SA
- | 20 |
| - Telio Telecom Schweiz AG
- | 19 |
| - OVH
- | 19 |
| - Init7 (Schweiz) AG
- | 19 |
| - netplus.ch SA
- | 15 |
| - Seabix AG
- | 15 |
| - wwcom ag
- | 11 |
| - Comfone AG
- | 10 |
| - Smartphone S.A.
- | 8 |
| - BT Switzerland AG
- | 8 |
| - ImproWare AG
- | 8 |
| - swissnet telecommunication ag
- | 7 |
| - Telserv B.V.
- | 6 |
| - Solaris Systems B.V.
- | 6 |
| - mobile4business AG
- | 5 |
| - senseLAN GmbH
- | 4 |
| - Elektrizit?ts- und Wasserwerk
- | 4 |
| - relario AG
- | 4 |
| - Box Internet Services S?rl
- | 3 |
| - TcNet GmbH
- | 3 |
| - Leunet AG
- | 3 |
| - Genossenschaft GGA MAUR
- | 3 |
| - Fink Telecom Services
- | 3 |
| - Wide Technology Partners AG
- | 2 |
| - Telecom26 AG
- | 2 |
| - EW H?fe AG
- | 2 |
| - Internet Group AG
- | 2 |
| - System-Clinch
- | 2 |
| - Telconet AG
- | 2 |
| - Swisscall Communications GmbH
- | 2 |
| - FEBO Telecom Limited
- | 2 |
| - Technische Betriebe Wil
- | 2 |
| - Compatel
- | 1 |
| - MLS Communications S?rl
- | 1 |
| - Services industriels de Lausanne
- | 1 |
| - NTD SA
- | 1 |
| - Planet VoIP International
- | 1 |
| - Vast New Telecom SA
- | 1 |
| - CKW Fiber Services AG
- | 1 |
| - Mitto AG
- | 1 |
| - Global Message Services AG
- | 1 |
| - Interoute Managed Services
- | 1 |
| - SwissLink Carrier AG
- | 1 |
| - acdalis informatik ag
- | 1 |
| - NTH AG
- | 1 |
| - Calltrade Carrier Services AG
- | 1 |
| - sasag Kabelkommunikation AG
- | 1 |
| - NetherTek Schweiz GmbH
- | 1 |
| - FREEFON AG
- | 1 |
| - future comm ag
- | 1 |
| - Blue Call AG
- | 1 |
| - Eldorex Advanced Engineering AG
- | 1 |
| - Ameex SA
- | 1 |
| - HORISEN AG
- | 1 |
| - WWZ Telekom AG
- | 1 |
| - Klixa AG
- | 1 |
| - TBS Strom AG
- | 1 |
| - UAB Nord Connect
- | 1 |
| - rational brands services AG
- | 1 |
| - QLine Ostschweiz AG
- | 1 |
| - FI Infocons Group SA
- | 1 |
| - Assolo Networks SA
- | 1 |
| - Comunica I.T. SERVICES SA
- | 1 |
| - Exion Networks SA
- | 1 |
| - mobile4business AG - | 1 |