sTLDSponsored top-level domain

About .aero domains

Registry / sponsor: Societe Internationale de Telecommunications Aeronautique (SITA INC USA)

About .aero domains

.AERO is a top-level domain delegated in the IANA root zone. See the official IANA delegation record for manager and technical contacts.

.aero (derived from aeronautics) is a sponsored top-level domain (sTLD) used in the Domain Name System of the Internet. It is the first sponsored top-level domain based on a single industrial theme. The .aero domain is reserved for companies, organizations, associations, government agencies, and individuals in aerospace-related fields. It was created in 2002 and is operated by SITA. SITA created and operates the Dot Aero Council. Two-letter codes under .aero are reserved for airlines according to the IATA Airline Designators. While three-letter codes were initially reserved for airports (IATA airport code), they were released for registration by the larger aviation and aerospace community on December 1, 2008. The aero top-level domain was initially approved in 2001 for a 5-year term expiring December 17, 2006 as part of a proof-of-concept of new top-level domains. The agreement was extended in October 2006 for a six-month term until June 17, 2007, and continued to be renewed on a June–December six-month cycle through June 17, 2009. In 2009, SITA and ICANN completed a new 10-year sponsorship agreement for the operation of .aero.

Who can register .aero domains?

Eligibility is defined by the registry operator and its registrars. Most gTLDs are open to anyone worldwide. Many ccTLDs are also open globally; some require local presence, citizenship, or trademark rights. Always confirm current policy with the registry or your registrar.

Registration restrictions

Character rules below follow common ICANN LDH conventions. Individual registries and registrars may impose extra eligibility, length, or residency rules.

Length
263 characters (label before .aero)
Can use
Letters (a–z), numbers (0–9), and hyphens (not first/last or consecutive in restricted cases)
Cannot use
Special characters (e.g. & # @) in standard LDH labels
IDNs
Varies by registry — check IDN support with the registry or your registrar

Features

Operational features (privacy, parking, protection) are registrar-level, not defined by the IANA root zone record.

registration Length
Typically 1–10 years (registry policy varies)
renewal Length
Typically 1–10 years (registry policy varies)
auto Renew
Depends on registrar settings
backorders
Registrar-dependent
transfers In
Supported for most ICANN gTLDs via Auth/EPP code; ccTLDs vary
transfers Out
Supported when the registry allows EPP transfers
transfer Lock
Supported on most gTLDs (clientTransferProhibited)
domain Privacy
Registrar WHOIS/RDAP privacy — not set by IANA
domain Protection
Registrar add-on
contact Updates
Supported via registrar

Registry information

Sponsor / manager
Societe Internationale de Telecommunications Aeronautique (SITA INC USA)
Registration services
http://www.information.aero
WHOIS server
whois.aero

Name servers

  • a0.nic.aero199.254.51.1 · 2001:500:1d:0:0:0:0:1
  • a2.nic.aero199.249.115.1 · 2001:500:43:0:0:0:0:1
  • b0.nic.aero199.254.52.1 · 2001:500:1e:0:0:0:0:1
  • b2.nic.aero199.249.123.1 · 2001:500:4b:0:0:0:0:1
  • c0.nic.aero199.254.54.1 · 2001:500:20:0:0:0:0:1

Source: IANA Root Zone Database. View IANA delegation record. Registrar-specific rules (e.g. GoDaddy transfer policies) can differ from registry policy and are not scraped here. Cataloged 2026-07-21.