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Free Temporary Phone Numbers for ChatGPT

ChatGPT usually needs only an email, but OpenAI asks for a phone number before your first API key and for some features. Copy a free number below, request the SMS code and read it in its public inbox.

SMS codeAPI key verificationNo registrationInboxes are public

Free numbers you can try for ChatGPT

OpenAI sends the code by SMS to mobile numbers. Pick one marked Online and open its page to read the code.

These inboxes are public.

Every message sent to a free number is visible to everyone — you do not rent the number or get exclusive access. Never use free numbers for banking, email recovery, or two-factor authentication on accounts that matter. For a fresh number only you can see, get a private temporary number from just a few cents.

How to get an OpenAI verification code on a free number

1

Copy an online number

Numbers are shown in full international format. Copy one and note which country it belongs to.

2

Enter it on OpenAI

Pick the same country in the list (it starts on the United States) and type the rest of the digits. If the screen says the code goes to WhatsApp, use a number from another country.

3

Read the code here

Go back to the number page. The code lands in the inbox within seconds and is highlighted for copying.

Does ChatGPT need a phone number?

Usually not. OpenAI says ChatGPT phone verification is not generally required to create an account or use ChatGPT, so an email address or a Google, Apple or Microsoft login is enough. If you want ChatGPT without a phone number, just sign up with email.

The phone step comes up in a few places: when you generate your first API key on platform.openai.com, and when you open Codex in the ChatGPT desktop app. That is where the numbers on this page come in.

OpenAI phone verification rules

What OpenAI’s help pages say about ChatGPT phone number verification and API keys:

Mobile numbers only
Landlines, VoIP, Google Voice and premium numbers are not supported. OpenAI says this is to stop fraud and abuse.
Three uses per number
A number can be used for OpenAI phone number verification up to three times, ever. On a shared number those uses are often gone.
SMS or WhatsApp
Codes come by text or, in some countries, WhatsApp, never by email or call. Free numbers here receive SMS only.
First API key only
The phone check is needed for your first API key, not for the keys you create after it.

Free or private number for ChatGPT?

A free number for ChatGPT is fine for

  • A first API key on a test project
  • Trying Codex on a spare account
  • Seeing how OpenAI’s phone check works
  • An account you will not keep

Use a private number for

  • Your main ChatGPT or Plus account
  • An API account with billing and credits
  • Team or business workspaces
  • Any account you may need to verify again

Fake or temp phone number for ChatGPT?

A fake phone number for ChatGPT goes nowhere. OpenAI sends a real SMS, so a made-up number never gets the code, and internet numbers from calling apps are blocked as VoIP.

A temp phone number for ChatGPT is a real number that receives the SMS. The free ones here are shared and may have used up their three OpenAI verifications, so try two or three. A private temp number for ChatGPT is fresh, and the code goes only to you.

Need a number only you can see?

Free numbers are shared, so some services reject them or show codes to everyone. A private temporary number is fresh, works with 100+ services, and the SMS goes only to you — from just a few cents, with an automatic refund if no code arrives.

Get a private number

ChatGPT temporary numbers — frequently asked questions

Do I need a phone number to use ChatGPT?

Usually not. You can sign up with an email address or a Google, Apple or Microsoft account. OpenAI asks for a phone number for your first API key and for some features, such as Codex in the desktop app.

Why does OpenAI reject my number?

It may be a landline or VoIP number, which OpenAI does not accept, or it may already have been used for verification three times. On a shared number the second reason is common. Try another number, or a private one.

Can I get the OpenAI code on WhatsApp?

In some countries OpenAI sends the code to WhatsApp instead of by SMS. Free numbers here receive SMS only, so if the screen mentions WhatsApp, pick a number from another country.

Is a free number safe for my ChatGPT account?

Only for a throwaway. The inbox is public, so anyone can see the codes sent to it. Never use a free number on a paid ChatGPT plan or an API account with billing.

Is there a ChatGPT phone number I can call?

Yes. 1-800-CHATGPT (1-800-242-8478) is OpenAI’s line for talking to ChatGPT by voice from the US and Canada. It cannot receive verification codes; use the numbers above for that.