UltaHost

UltaHost is a web host and domain registrar based in the United States. It is ICANN-accredited, with IANA ID 4331.

Website	ultahost.com

API access

Status	Not reviewed

API access for UltaHost has not been checked yet.

About UltaHost

Headquarters	United States
Type	Web host that registers domains
ICANN accreditation	IANA ID 4331
Site languages	English
RDAP server	https://rdap.ultahosting.com/

UltaHost in Lemon Domains

Bring UltaHost domains into Lemon Domains by pasting the domain list or uploading a CSV export, next to the domains from every other registrar you use. Lemon Domains tracks expiry dates and lets your AI assistant answer questions about them through MCP.

Import UltaHost domains Send an integration request

Other registrars in United States

101domain	Integrated
Amazon Route 53 Domains	Integrated
Atom	Integrated
Azure App Service Domains	Integrated
Blue Razor Domains	Blocked
Bluehost	Blocked

Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and UltaHost's own site and documentation (reviewed 2026-10-24). This page is also available as Markdown and JSON. Something out of date? Tell us.

Frequently asked questions

Is UltaHost ICANN-accredited?

Yes. UltaHost is on the ICANN list of accredited registrars, so it can register generic extensions such as .com directly with the registries.

What is UltaHost's IANA ID?

4331. The IANA registrar ID appears in the registrar field of a domain's public record, so it shows which registrar a domain is with.