All TLDs / .sncf
What is .sncf?
.sncf is a brand top-level domain, operated by Société Nationale SNCF. 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
Registry operator: Société Nationale SNCF — per the IANA root database.
Source: IANA root zone database, checked August 23, 2026.
Is .sncf a real domain extension?
Yes — .sncf 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 .sncf?
.sncf is operated by Société Nationale SNCF, per the IANA root database.
What is .sncf used for?
.sncf is a dot-brand registry — it's reserved for Société Nationale SNCF and isn't used for third-party websites.
Can anyone register a .sncf domain?
No. .sncf 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.
Not sure this is the right extension? Start from what you’re building, or compare it on the full TLD list.