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ChatGPT · +44

A UK mobile number for ChatGPT, entered the way OpenAI reads it

Britain is on OpenAI's short list of countries where new users can open a ChatGPT account with a phone number instead of an email. That turns a +44 mobile into a login credential, not just a one-off check, and it raises the stakes on which number you hand over.

Two OpenAI rules shape the decision: the number on an account can never be changed, and any single number can be used for verification no more than three times. A British mobile you rent month to month from a carrier and later drop is the wrong fit. One you keep renewing is the right one.

Below you'll find the moments OpenAI asks UK users for a number, the formatting mistakes that stop a +44 code, how phone-only accounts behave, and what you get with an SMSCreation UK number.

01

What a +44 number does for a ChatGPT user

In the UK the mobile number already works as the everyday second factor for banks, councils and delivery apps, so it feels natural as an OpenAI login too. Phone-only sign-up means a British number can be the only identifier on a new ChatGPT account at first.

People outside Britain choose a UK number for OpenAI when their work, clients or team are UK-based and they want the account to sit on a local line. Others simply want to keep ChatGPT off their personal SIM, so a lost or changed phone contract never touches their AI account.

02

The four moments OpenAI asks for a number

Outside those moments, OpenAI's help centre says phone verification is generally not required, and an email or a Google, Apple or Microsoft login does the job.

  • Creating a new ChatGPT account with a phone number, which OpenAI says has rolled out to new users in the United Kingdom.
  • Accessing Codex through the ChatGPT desktop app, a step OpenAI says an email or authenticator app cannot replace.
  • Creating the first developer key for an account on platform.openai.com.
  • Signing in with text-message MFA, if you choose it: a 6-digit code goes to the number each time.
03

Pick your United Kingdom number

These United Kingdom numbers are listed right now (32 in total). Choose one on the country page; the hidden digits are assigned when your order is approved and the number is activated.

+44 XX17 1454XX● Available
+44 XX65 7430XX● Available
+44 XX76 2456XX● Available
+44 XX42 2879XX● Available
+44 XX37 1781XX● Available
+44 XX60 5218XX● Available

United Kingdom

04

The +44 07 mistake, and the other UK formatting traps

OpenAI's verification screen opens with the United States selected, so the first job is switching the dropdown to United Kingdom. The second is dropping the trunk 0. A UK mobile written at home as 07400 123456 has eleven digits; after +44 it has ten, starting with 7. Typing +44 07400 123456 gives the form a number no UK network recognises.

It also helps to know which 07 numbers are genuine mobiles. Ofcom sets aside 070 for personal numbering and 076 for pagers, and verification systems often refuse them. Real mobile ranges sit in 071–075 and 077–079, which is where SMSCreation's UK numbers come from.

Dropdown
Switch from United States to United Kingdom (+44)
Home format
07400 123456 (11 digits)
What to type on OpenAI
7400 123456 (10 digits, no 0)
Wrong
+44 07400 123456
Code channel
SMS; the UK is not on OpenAI's WhatsApp list
05

Living with a phone-only account on a UK number

A ChatGPT account created with only a +44 number behaves a little differently. OpenAI says the password is reset by SMS, and only from a device you have already used to log in at least once. You can't switch on multi-factor authentication until you've linked an email, which you add on the web under Settings → Account → Email → Add.

Upgrading to a paid plan also needs a verified email, according to OpenAI. After you link one, you can move the account to Google, Apple or Microsoft login if you prefer. Throughout, the UK number stays attached, because OpenAI offers no way to change it.

06

Verifying ChatGPT with an SMSCreation UK number

  1. 01Order a UK number; its full digits appear in your dashboard after payment.
  2. 02On OpenAI's phone screen, change the country from United States to United Kingdom.
  3. 03Type the ten digits that follow +44, starting with 7 and without the 0.
  4. 04Request the code and open the SMS inbox in your dashboard, where the text lands.
  5. 05Enter the code, then link an email if the account was created phone-only.
  6. 06Enable MFA under Settings → Security and login, and leave auto-renew on.
07

What a UK number can't fix

  • The number is locked to the account for life: OpenAI can't change or update it, on ChatGPT or the developer platform.
  • Each number verifies at most three times. After its first verification it can no longer create a new account.
  • If OpenAI says “Too many signups with this number”, the number has history with OpenAI, possibly from a previous user; OpenAI says there's no workaround.
  • Codes never come by voice call or email, so there's no fallback if you mistype the number; fix the format and request again.
  • An “unsupported country” message refers to the location you're accessing from, not the +44 number.
08

Why it works with WhatsApp, Facebook, Telegram & Google

Apps check more than the digits: they look up the line type, the country format and whether the number can actually receive their code. Every SMSCreation number is a real mobile number in its country's official format — not a VoIP line — so it passes those checks the same way a SIM in your pocket does.

And we stand behind it with a 7-day replacement guarantee: if your number doesn't work with WhatsApp, Facebook, Telegram, Google or any app you need, we replace it free with a new number in the same country — or refund 100% if you prefer.

  • Non-VoIP, real mobile line type — line-type checks see an ordinary SIM number, not a VoIP line
  • Official country format with the right country code, prefix and digit count
  • Unlimited incoming SMS and calls — codes arrive by text or through the “call me” option
  • Private to you — never listed on public SMS sites, so it isn't flagged or rate-limited
  • Yours for as long as you want — re-verification and account recovery keep working
09

Price and keeping your +44 number

A UK number is from $1.80 a month on the yearly plan ($21.60 billed yearly), with unlimited incoming SMS and calls plus 500 outgoing SMS and 1,000 outgoing minutes a month. It remains yours as long as it renews, so OpenAI's future SMS codes and password resets keep reaching you.

The 7-day replacement guarantee applies: if the number doesn't work for OpenAI verification, you get a free replacement UK number within 7 days of activation, or a 100% refund. An unused number, with no calls or SMS, can also be refunded within 7 days, no questions asked.

From
$1.80 / month
Billed yearly ($21.60/year) · same price in every country · all plan options are shown when you choose your number
Choose your number
10
11

Questions

Is phone-only ChatGPT sign-up available with a UK number?

Yes. OpenAI names the United Kingdom among the countries where phone-only sign-up has rolled out, mostly to new users. You can create the account with the +44 number and add an email afterwards, which you'll need for MFA and a paid plan.

Why does OpenAI reject my UK number when I include the 0?

Because the 0 is a UK trunk prefix. Once United Kingdom (+44) is selected, the number must start with 7, as in 7400 123456. Typing 07400 123456 after +44 adds a digit the network doesn't expect.

Will a UK 070 number work for ChatGPT?

It's risky. Ofcom reserves 070 for personal numbering services, which aren't mobile lines, and OpenAI accepts mobile numbers only. Use a number from the genuine mobile ranges, such as 074, 075 or 077–079.

Does OpenAI send UK codes on WhatsApp?

No. OpenAI's WhatsApp list covers a dozen countries, and the UK isn't among them. A +44 number receives OpenAI's code by SMS, and OpenAI never uses email or a phone call for it.

Can I move my ChatGPT account from an old UK SIM to a new number?

No. OpenAI doesn't offer any way to change the phone number on an account. If the old SIM is gone, the number stays on the account anyway, which is why choosing a number you'll keep matters from day one.

Will the number work with WhatsApp, Facebook, Telegram and Google?

Yes — guaranteed. It's a real mobile number with unlimited incoming SMS and calls, so verification codes arrive by SMS or voice call. If it doesn't work with WhatsApp, Facebook, Telegram, Google or any app you need, we replace it free within 7 days — or refund 100%.

Sources

Last checked 2026-10-01