.arpa Domain Delegation

.arpa is a infrastructure top-level domain (gTLD) managed by Internet Architecture Board (IAB). The URL for .arpa domain registration services is http://www.iana.org/arpa-dom/, and the responsible WHOIS server is whois.iana.org.

A top-level domain (TLD) is an internet domain name extension that is operated by the Internet Assigned Numbers Authority (IANA). One type of TLDs are generic top-level domains (gTLDs) which consist of 3 or more characters. A special type of generic TLDs are infrastructure TLDs like .arpa that are operated by IANA and provide operationally-critical infrastructural identifier spaces.

.arpa Authoritative Information

TypeInfrastructure Top-Level Domain (gTLD)
Sponsoring OrganisationInternet Architecture Board (IAB)
Registration Serviceshttp://www.iana.org/arpa-dom/
WHOIS Serverwhois.iana.org

Further information about the .arpa root zone can be found at IANA. Click here for a full list of top-level domains.