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Introduced 1997
TLD type Country code top-level domain
Status Active
Registry Ascension Island Network Information Centre (run by Internet Computer Bureau)
Sponsor Cable and Wireless (Ascension Island)
Intended use Entities connected with  Saint Helena, Ascension and Tristan da Cunha
Actual use Various uses, sometimes connected to education and academia; a few sites actually on Ascension Island
Registration restrictions 2nd-level registrant must have professional or academic qualification ; 3rd level registrant must be resident on Ascension Island
Structure Registrations are taken directly at the second level or at third level beneath various 2nd-level labels
Documents Terms & Conditions; Rules
Dispute policies Dispute Resolution Policy
Registry Website NIC.AC

.ac is the Internet country code top-level domain (ccTLD) for Saint Helena, Ascension and Tristan da Cunha. It is administered by NIC.AC, a subsidiary of the Internet Computer Bureau based in the United Kingdom.

Registration for this domain is open to anyone. The registry accepts registrations of internationalized domain names.[1]

.ac is marketed by some domain-brokers as a domain for the city of Aachen in Germany, using the analogy to the automotive license plate designation ("AC") for the city.

Use as an abbreviation for "academic"[edit]

Due to its similarity to the .ac (“academic”) second-level domain that exists under some country code top-level domains, some educational institutions also register under the .ac top-level domain:

Notable uses[edit]

See also[edit]


External links[edit]