A permanent NRO Secretariat provides coordinated support for both NRO and ASO activities. You can contact the Secretariat using the following form:

    Your Name (required)

    Your Email (required)


    Your Message

    Input this code: captcha

    The information requested above is necessary for the NRO Secretariat to handle the request you raised by submitting the contact form and provide you with the requested information. We do not reuse the information you provide for  any other purpose and will not share this information with third parties unless this is necessary to fulfil your request.


    Who to Contact

    The Number Resource Organization’s (NRO) work and the Address Supporting Organization’s (ASO) work overlaps significantly. You can find a list of who to contact below:

    NRO Contacts


    Who What Contact
    NRO Secretariat General enquiries to/information about the NRO, press enquiries, website issues secretariat [at]
    NRO Executive Council (EC) Secretary ICANN Empowered Community requests/activities secretary [at]


    NRO Mailing Lists

    The NRO facilitates several public mailing lists for discussion and/or information sharing. These mailing lists are open to all and are publicly archived.

    List Topics Archives
    nro-comments (inactive) Mailing list for responses to and discussion on calls-for-comments and feedback on specific documents and activities.  Archives
     nro-announce (inactive) Mailing list to keep up-to-date with the latest announcements from the NRO.  Archives
    global-v6-discussion (inactive) Discussion list for those interested in IPv6 deployment around the world. Archives


    ASO Contacts


    Who What Contact
    ASO Secretariat General enquiries/information about the ASO or about the ASO Address Council (AC) press enquiries or website issues. secretariat [at]
    ASO AC Nominating Committee (NomCom) ICANN Seat 9 and 10 Board Director appointments. nom-com [at]


    ASO Mailing Lists

    The ASO  facilitates several public mailing lists for discussion and/or information sharing. These mailing lists are open to everyone. All are publicly archived.

    List Topics Subscribe Archives
     aso-announce Used by the ASO to make announcements relating to ASO news, global policy development, meetings, and calls for comment. Open to all, posting restricted to ASO Secretariat. Subscribe/Unsubscribe Archives
     aso-policy Public discussion forum for the ASO to discuss global policy development (gPDP). It is open to all in line with the ASO MoU. Subscribe/Unsubscribe Archives
     ASO-council This list is used by the ASO AC for public discussion. Posting is restricted to the ASO AC members. The list is publicly archived. Subscribe/Unsubscribe Archives


    RIR Contacts

    Contact your  Regional Internet Registry (RIR) to find out more about Internet number resources, policy development, training on IPv6 deployment, local and regional initiatives and information about public policy meetings.

    RIR Region Contact Mailing Lists
    African Network Coordination Centre (AFRINIC) Africa Contact Mailing Lists
    Asia-Pacific Network Coordination Centre (APNIC) Asia Pacific Contact Mailing Lists 
    American Registry for Internet Numbers (ARIN) United States, Canada, many Caribbean and North Atlantic islands Contact Mailing Lists 
    Latin America and Caribbean Network Information Centre (LACNIC) Latin America and the Caribbean Contact Mailing Lists
    Réseaux IP Européens Network Coordination Centre (RIPE NCC) Europe, the Middle East and parts of Central Asia Contact Mailing Lists  


    Last modified on 16/02/2024