# Temporary number for OpenAI / ChatGPT verification

OpenAI asks for a phone number to confirm a new ChatGPT account and when you set up an API organization on platform.openai.com. It sends a 6-digit code by SMS, offers no call, and refuses VoIP ranges; one number verifies only a few OpenAI accounts. The phone is not used to log in later: ChatGPT signs in with email, Google, Microsoft or Apple. SMS Nitro lists physical-SIM countries for OpenAI, the number is reserved for 20 minutes, the code shows in your dashboard, and you pay only if it arrives.

## Can I verify OpenAI / ChatGPT with a temporary number?

Yes. Pick OpenAI / ChatGPT in the catalog, choose a country (United States, United Kingdom, India, Canada, Philippines have the best recent results), enter the number in the app and read the 6-digit code in your dashboard. The number is reserved for 20 minutes and you are charged only when the SMS arrives. OpenAI / ChatGPT rejects most VoIP numbers, so choose a country marked physical SIM. Numbers for OpenAI / ChatGPT are unlimited and never run out.

| | |
|---|---|
| Availability | Unlimited: OpenAI / ChatGPT numbers never run out, available 24/7 |
| Price | From $0.05 per code (Philippines, last snapshot) |
| Code format | 6 digits by SMS |
| VoIP numbers | Usually rejected: use physical SIM |
| Number reserved for | 20 minutes |
| Billing | Only when the code arrives; automatic refund otherwise |
| Best countries | United States, United Kingdom, India, Canada, Philippines |

## How to get a OpenAI / ChatGPT verification code

1. **Choose OpenAI / ChatGPT in the catalog** Pick a country; the price is shown before you confirm.
2. **Enter the number in the app** Select the country code and type the number in OpenAI / ChatGPT's sign-up or verification screen.
3. **Read the 6-digit code** It appears in your dashboard within seconds of being sent.
4. **Pay only if it arrives** No SMS within 20 minutes means the amount returns to your balance.

## Why use a temporary number for OpenAI / ChatGPT?

- Keep a work OpenAI account separate from a personal one, each with its own contact number.
- Create a test organization for API development without reusing the number on your main account.
- Verify an account for a client project where the phone on file should not be a personal cell.
- Sign up for ChatGPT while traveling when your home SIM cannot receive texts.

## Best countries for OpenAI / ChatGPT verification

OpenAI accepts mobile numbers from most countries where ChatGPT is offered, and the number's country does not have to match your billing country. The cheapest physical-SIM options for OpenAI were Philippines at $0.05, then Indonesia, Argentina, Pakistan and the United Kingdom at $0.07 at the last price snapshot; Brazil was $0.08. The United States, United Kingdom, India, Canada and Philippines show the best recent results for OpenAI. Pick physical SIM: OpenAI rejects VoIP ranges outright. 36 countries are available with unlimited numbers that never run out.

## Tips to keep the OpenAI / ChatGPT account

- Type only the national digits and select the country flag; OpenAI's field adds the + prefix. The flag must match the dial code in your dashboard.
- Request the code once and wait up to a minute. OpenAI limits resend attempts and the number of accounts per number.
- Add a Google, Microsoft or Apple login and enable multi-factor authentication in Settings → Security; the phone plays no part in later logins.
- Verify on the account you will keep. OpenAI ties the number to that account and accepts it for very few others.

## If OpenAI / ChatGPT rejects the number or the code is slow

- 'The phone number you entered is not supported' → OpenAI does not accept this range, usually VoIP or an unsupported country. Let the 20-minute reservation end for the automatic refund and pick another physical-SIM country.
- 'This phone number is already linked to the maximum number of accounts' → the number has used up its allowed accounts. Choose a different country; you pay only if a code arrives.
- The 6-digit code is refused as invalid → it expired or a newer code was requested. Use the most recent SMS in your dashboard and enter it within a few minutes.

## FAQ

**Does ChatGPT accept temporary phone numbers for verification?** Yes, when the number comes from a mobile carrier. Pick OpenAI in SMS Nitro, choose a physical-SIM country, enter the number on the verification screen and read the 6-digit code in your dashboard. The number is reserved for 20 minutes and you pay only if the code arrives.

**Why does OpenAI say the phone number is not supported?** OpenAI refuses VoIP ranges and numbers from countries where it does not operate. Choose a country marked physical SIM, such as Philippines or the United Kingdom, and request the code once. If no code arrives you are not charged; the automatic refund returns the amount.

**Do I need the phone number to log into ChatGPT later?** No. ChatGPT and the OpenAI platform log in with email and password or with Google, Microsoft or Apple. The phone is checked once at verification. Turn on multi-factor authentication with an authenticator app so account security does not rely on SMS.

**Can one phone number verify several OpenAI accounts?** Only a few. OpenAI caps how many accounts a number can verify and then shows 'already linked to the maximum number of accounts'. For each new OpenAI account, take a new number; the cheapest at the last price snapshot was Philippines at $0.05.

**Which country works best for OpenAI phone verification?** The United States, United Kingdom, India, Canada and Philippines show the best recent results for OpenAI. The number's country does not need to match your location or billing country. Philippines at $0.05 and the United Kingdom at $0.07 were the cheapest at the last price snapshot.

**How much does a temporary number for OpenAI / ChatGPT cost?** From $0.05 per delivered code in Philippines at the last price snapshot; physical-SIM pools and strict countries cost more. The exact price for OpenAI / ChatGPT is shown before you confirm and is frozen until the SMS arrives.

**How long is the number reserved for OpenAI / ChatGPT?** 20 minutes. During that time the number is yours alone and every SMS from OpenAI / ChatGPT appears in your dashboard. You pay only when the first code arrives.

**What if the OpenAI / ChatGPT code never arrives?** You are not charged. The held amount returns to your balance automatically and you can take another number for OpenAI / ChatGPT, from the same or a different country, right away.

**Does OpenAI / ChatGPT accept virtual numbers?** Rarely. OpenAI / ChatGPT checks the carrier behind the number and refuses most VoIP ranges, so pick a country marked physical SIM; those are real carrier lines.

**Can I receive a second OpenAI / ChatGPT code on the same number?** Yes, while the number is active, at no extra cost. Ask OpenAI / ChatGPT to resend and read the new SMS in the same dashboard row; the latest code is the valid one.

**Does OpenAI / ChatGPT see my real phone number?** No. OpenAI / ChatGPT only sees the temporary number you typed. Your personal number is never shared, and the SMS is read in your SMS Nitro dashboard, not on your phone.

Source: https://smsnitro.com/number/openai