DelegatedIANA root zone

.gov

About .gov

IANA

.gov is listed by IANA as a sponsored top-level domain. The sponsoring organisation shown in the IANA delegation record is Cybersecurity and Infrastructure Security Agency.

Policy and eligibility are deliberately not inferred from the string name. Registration rules should be taken from the registry and its official documentation.

DNS and protocol details

Root-level delegation and protocol endpoints surfaced without hiding the source.

Authoritative nameservers

Published in the IANA delegation record.

a.ns.gov199.33.230.1 · 2001:503:ff40:0:0:0:0:1

b.ns.gov199.33.231.1 · 2001:503:ff41:0:0:0:0:1

c.ns.gov199.33.232.1 · 2001:503:ff42:0:0:0:0:1

d.ns.gov199.33.233.1 · 2001:503:ff43:0:0:0:0:1

Protocol endpoints

Published registry lookup services.

RDAP: https://rdap.nic.gov/rdap/
WHOIS: whois.nic.gov
Registry: https://get.gov

Delegation history

Record timeline

Only milestones that can be tied directly to official records are shown.

1985-01-01
IANA registration date
Registration date shown in the IANA delegation record.
2026-08-04
IANA record last updated
Latest update date displayed by the IANA delegation record.

Sources

Official records

This page keeps operational facts attached to their original source.

IANADelegation record IANA / InterNICAuthoritative root zone RegistryRegistration services

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