All TLDs / .sas

What is .sas?

The short answer
.sas is a brand top-level domain, operated by Research IP LLC. It's a “dot-brand” registry (ICANN Spec 13) — reserved for the operator's own use, so it isn't open for the public to register. It's live in the official IANA DNS root zone.
Type
Brand (dot-brand)
Registration
Closed (brand)
In DNS root
Yes
Operator
Research IP LLC

Source: IANA root zone database, checked October 18, 2026.

Is .sas a real domain extension?

Yes — .sas is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.

Who runs .sas?

.sas is operated by Research IP LLC, per the IANA root database.

What is .sas used for?

.sas is a dot-brand registry — it's reserved for Research IP LLC and isn't used for third-party websites.

Can anyone register a .sas domain?

No. .sas is a closed brand registry, so it isn't available for public registration. A registrar search will confirm the current policy for any specific name.