Contact for questions about telecom services
Service description
Please read the FAQs beforehand. You may already find an answer to your question there.
On this page we can accept your questions and comments about the following topics:
- Individual numbers (0800, 084x, 090x)
- Short numbers (Carrier Selection Codes (CSC), 1xy, 18xy, 116xyz, SMS/MMS)
- Number blocks
- Other numbers and codes such as National Signalling Point Codes (NSPC), Mobile Network Codes (MNC), Issuer Identifier Numbers (IIN) etc.
- Service providers
- Other matters concerning telecom services
Support - Contact
Federal Office of Communications
TP-NA
Zukunftstrasse 44
Postfach 256
CH-2501 Biel/Bienne
Tel.: +41 58 460 56 40
Email: eofcom@bakom.admin.ch
Contact form