Search for an E.164 number block

Service description

Search for allocated or available E.164 number blocks.

There are three ways to search for E.164 number blocks:

1. Search for all E.164 number blocks: Search for all available or allocated E.164 number blocks.
2. Search by holder: Search for E.164 number blocks allocated to the selected holder.
3. Search by value range: Search for E.164 number blocks within a specific value range.

Do you have any questions or comments about the 'Search for an E.164 number block' service? 

Contact us using the service Contact for questions about telecom services.  

Support - Contact

Federal Office of Communications
TP-NA
Zukunftstrasse 44
Postfach 256
CH-2501 Biel/Bienne

Tel.: +41 58 460 56 41
Email: numbering@bakom.admin.ch   
Contact form