German Unification Day - Office Hours

Due to the public holiday German Unification Day, the DENIC head office in Frankfurt is closed on Monday, 3 October 2022. Of course, the 24/7service will be on duty and can be reached in case of an emergency.

On Tuesday, 4 October 2022, we are available again during regular business hours.


ENUM Domains

Technical Specification

The ENUM specification was developed and managed by the IETF in the ENUM Working Group, which had been established for this purpose:


RFC 2916
RFC 3761
RFC 6116

September 2000
April 2004
March 2011

valid version

RFC 6117

March 2011

valid version

RFC 6118

March 2011

valid version

RFC 6116 describes the basic technology of mapping telephone numbers (E.164) to the Domain Name System.
RFC 6117 defines the requirements for the specification of new ENUM services.
RFC 6118 revises all ENUM services defined under former RFCs.

For a comprehensive overview of all RFCs, please refer to the RFC Archives of IETF or to the RFC Editor website.