Domains

Domains Help

About .ac Domains

Nic.ac (operated by Donuts) is the sponsor and Donuts is our backend provider for the country-code top-level domain name (ccTLD) .ac extensions that represents Ascension and Tristan da Cunha Islands.

Who can register .ac domains?

Anyone can register .ac domain names.

Registration restrictions

When registering a .ac domain, you must follow specific requirements.

  • Must use: 3 - 63 Characters
  • Can use: Letters: a-z, Numbers: 0-9, Hyphens (except in the 1st or last characters of the domain name)
  • Cannot use: Special Characters (e.g., & and #)
  • IDNs: Not supported

Features

  • Registration length: 1-10 years
  • Renewal length: 1-10 years
    • Your .ac domain renews before its expiration date. If auto-renew is turned on, we'll attempt renewal 35 days prior to the domain's expiration date. If the first attempt fails, we'll continue attempting renewal multiple times prior to the domain's expiration date.
    • If we cannot auto-renew the domain name and you do not manually renew it by the expiration date, you can attempt to recover your domain with any applicable fees.
    • Due to time zone differences, registry updates to your .ac domain name occur very early in the day. If you decide to manually renew your domain name, we recommend that you do so prior to its expiration date.
  • Transfers to 123 Reg: Supported
  • Transfers away from 123 Reg: Supported
  • Transfers to another 123 Reg account: Supported
  • Domain Privacy: Supported
  • Domain Protection: Supported
  • Contact Updates: Supported

Nameserver requirements

  • Must use: 1-13 Nameservers
  • Can use: IPv4, IPv6, DNSSEC

Refunds

For details on refunds, review our refund policy

More info