Dear Colleagues, The RIPE NCC is pleased to announce its plan for the deployment of DNSSEC in the e164.arpa zone (ENUM). This improvement to the operation of the domain was developed and concluded following consultation with the IETF's Internet Architecture Board (IAB). In line with the IAB's instructions, the RIPE NCC has provided technical administration for the e164.arpa zone since 2002. These instructions are documented and are available at: http://www.ripe.net/enum/instructions.html We informed the IAB of our intention to implement DNSSEC in the e164.arpa zone and we received positive feedback and support for the deployment. Details of the correspondence between the RIPE NCC and the IAB can be found at: http://www.iab.org/documents/correspondence/ We will start signing the e164.arpa on 26 November 2007 and support for secure delegations will be provided on 24 March 2008. Further announcements will be posted as these milestones approach. Best regards, Andrei Robachevsky Chief Technical Officer RIPE NCC