123 Reg
123 Reg is a domain registrar based in the United Kingdom, founded in 2000. It is ICANN-accredited, with IANA ID 1515.
| Website | 123-reg.co.uk |
|---|
API access
| Status | Blocked |
|---|---|
| API | No customer API; 123 Reg accounts are not on the GoDaddy developer API. |
| Notes | Large UK retail brand from the former Host Europe Group. |
About 123 Reg
| Headquarters | United Kingdom |
|---|---|
| Founded | 2000 |
| Part of | GoDaddy |
| Domains under management | About 3 million |
| Type | Retail registrar |
| ICANN accreditation | IANA ID 1515 |
| Site languages | English |
| RDAP server | https://rdap.123-reg.co.uk/v1/ |
Domain extensions 123 Reg sells
Confirmed on its site: .uk.
123-Reg in Lemon Domains
Lemon Domains doesn't sync with 123-Reg by API, so 123-Reg domains come in by paste or CSV. They then sit next to your domains from every other registrar, with expiry tracking, and your AI can answer questions about them through MCP, the API and the CLI.
- How it connects
- Paste or CSV import
- Your domain list
- 123-Reg account
What you can do with 123-Reg domains
In Lemon Domains
- Bring in your domains · By paste or CSV import
On 123-Reg's site
- See expiry, auto-renew and lock status
- Edit DNS records
- Change nameservers
- Turn the transfer lock on or off
- Turn auto-renew on or off
- Renew a domain
- Buy a new domain
- Get a transfer code
Import your 123-Reg domains
It takes about a minute, and you can re-import any time to refresh.
Open your 123-Reg control panel
- 1Open your 123-Reg account at 123-reg.co.uk and go to the domain list.
- 2If the list paginates, switch to "show all" or the largest page size so every 123-Reg domain is visible.
- 3Copy the visible list, or export to CSV if 123-Reg offers it from the account area.
- 4In Lemon Domains, click Import, paste the list or upload the CSV, and map the columns. Lemon Domains previews everything before it commits.
- 5Give the registrar account a friendly label (for example "123-Reg personal" or "123-Reg client work") so sub-accounts stay distinct.
Related registrars
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Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and 123 Reg'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 Something out of date?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
Does Lemon Domains support 123-Reg domains?
Yes. Lemon Domains does not sync with 123-Reg by API, so 123-Reg domains come in by pasting your domain list from the 123-Reg dashboard or uploading a CSV export. Re-import any time to refresh. Multiple 123-Reg accounts are supported with friendly labels so sub-accounts stay distinct in the unified portfolio.
Do I need to share my 123-Reg password?
No. Lemon Domains does not sync with 123-Reg by API, so it never asks for any 123-Reg credentials. Paste your domain list from the 123-Reg dashboard or upload a CSV export. Neither needs your password.
Can I track multiple 123-Reg accounts?
Yes. Add one Lemon Domains registrar entry per 123-Reg account with its own friendly label. Personal and business logins, sub-accounts, and client accounts all sit side by side in one dashboard.
Does Lemon Domains renew my 123-Reg domains?
No. Renewal still happens at 123-Reg. Lemon Domains tracks expiry dates and auto-renew status so you know exactly when to act, but the renewal button stays at 123-Reg.
Can AI assistants query my 123-Reg domains?
Yes. The Lemon Domains MCP server lets ChatGPT, Claude, Cursor and any MCP client query your full portfolio, including 123-Reg domains, in plain English. Choose read-only or read-and-write access for each token.
Is 123 Reg ICANN-accredited?
Yes. 123 Reg is on the ICANN list of accredited registrars, so it can register generic extensions such as .com directly with the registries.
What is 123 Reg's IANA ID?
1515. The IANA registrar ID appears in the registrar field of a domain's public record, so it shows which registrar a domain is with.
Does 123 Reg have an API?
Not one that account holders can use. No customer API; 123 Reg accounts are not on the GoDaddy developer API. 123 Reg domains come into Lemon Domains by paste or CSV import instead.