Num­ber­ing

The Bundesnetzagentur carries out the sovereign task of numbering. It is responsible for the structuring and design of the numbering space to satisfy the requirements of end-users, telecommunications network operators and telecommunications service providers.

Numbers are character strings that serve the purpose of addressing in telecommunications networks. All the numbers used for a particular type of addressing are referred to as a numbering space. A distinction is made between telephone numbers and technical numbers.

Telephone numbers are numbers which, when dialled in the public telephone service, allow a connection to be set up to a specific destination.

All numbers that are not telephone numbers are referred to as technical numbers. Technical numbers are used for a wide range of purposes.

Telephone numbers

The German numbering space is the part identified by the country code 49 of the international numbering space. The main numbers are geographic numbers and mobile numbers. In addition, there are several other types of numbers, for which numbering ranges have been provided.

Specific numbers in the German numbering space are provided for the different telecommunications services.

Information for specific numbers and number ranges in the German numbering space
Geographic numbers(0)15, (0)16, (0)17 - Numbers for mobile services
(0)32 - National subscriber numbersMachine-to-machine communications (M2M)
(0)700 - Personal numbers (0)164, (0)168, (0)169 - Numbers for paging services
(0)800 - Numbers for freephone services115 - Nationwide phone number for public authorities
(0)900 - Numbers for premium rate services 116xyz - Numbers for harmonised services of social value
(0)180 - Numbers for medium rate services118xy - Numbers for directory enquiries
(0)137 - Numbers for short-term mass calling110, 112 - Emergency numbers
(0)18 - Numbers for virtual private networks (VPNs)(0)19x - Routing codes
(0)181 - Numbers for international virtual private networks (IVPNs)Collect Calls
(0)19xyz - Numbers for online services
Previously available or considered numbers
010 - Carrier codes for carrier selection or carrier pre-selection(0)31x - Numbers for test purposes
(0)9009 Numbers for DialerAsterisk* numbers

Technical Numbers

For some types of technical numbers, a separate, purely national numbering range has been provided. For other types of numbers, the number structure and intended use are regulated in recommendations of the International Telecommunication Union (ITU). In some cases, the German numbering space is part of the international numbering space.

Information (in German) on the individual types of technical numbers available can be found at:
ADMD - Administration Management Domains (X.400)Kurzwahlnummern im Mobilfunk
CUGIC - Closed User Group Interlock Codes (Q.763/X.180)NCC - National Colour Codes
DNIC - Data Network Identification Codes (X.121)Call signs for air radio stations in civil mobile aeronautical radio
Equipment Manufacturer Codes for Telematic Protocols (T.35)Numbers for maritime and inland waterway radio
ITSI - Individual TETRA Subscriber IdentitiesCarrier/Service Provider Object Identifier Branches (OKA-ND-X.660)
ICC - ITU Carrier Codes (M.1400)PK -Porting identifiers
IMEI - International Mobile Station Equipment IdentitiesSignalling Point Codes (SPC)
IMSI - International Mobile Subscriber IdentityCharging Reference Branches (TRZ)
IIN -Issuer Identifier Numbers (E.118)Nummern für Campusnetze
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