Virtual number for ChatGPT and OpenAI: get the SMS code

If OpenAI asks you to verify a phone number, check the form, the country and the exact step first. Not every ChatGPT login needs an SMS, but the API platform and some security checks still do.

Signing in to ChatGPT and creating your first API key work differently. If the OpenAI form does not ask for a phone, there is no reason to buy a number in advance. When a phone check does appear, you need a number that can actually receive the code.

When OpenAI asks for a phone number

The most common case is the first API setup. The OpenAI help center says phone verification is required on platform.openai.com to generate your first API key. After that, new keys usually do not need another check.

A number can also be used for SMS or WhatsApp verification in the security settings, if you turn on that kind of two-factor authentication yourself. Signing in to ChatGPT can be verified in other ways too, for example with a code sent to your email.

How to get the OpenAI code step by step

1. Open Hush SMS in the Telegram bot or in the web account.
2. Choose OpenAI or ChatGPT in the catalog.
3. Pick a country that is listed in the OpenAI form.
4. Buy the number and enter it in the form together with the country code.
5. Request the code only after the number has been issued to you.
6. Wait for the SMS in your order and enter the code on the OpenAI side.

If the OpenAI form has a different country code selected, the SMS may never be sent. Match the country in the form first, then buy the number.

Why the OpenAI code may not arrive

• The country does not fit the current check. OpenAI accepts different countries at different times.
• OpenAI rejected the number before sending the SMS. The form usually shows an error right away.
• Too many requests. After several attempts in a row the form can slow down or block new codes for a while.
• Carrier delay. Sometimes a route is simply slow or unavailable.

Do not press "send code" again and again. Wait a minute, check the number format and only then try again. If the form shows an error before any SMS is sent, buying another number from the same country may not help: try a different country. More causes and fixes are in the guide what to do if the SMS code does not arrive.

One-time activation or rental

One code usually needs only a one-time activation. It is cheaper and faster: the number is issued for one code, and once the SMS arrives, the job is done.

A rental makes sense when you expect more checks on the same number, for example when it is tied to a work account, API access or a test environment. Even a rental cannot guarantee that OpenAI will always send a repeat code to that number, but it keeps the number in your hands.

Checklist before you buy

• OpenAI really asks for a phone, not for an email code.
• The country you want is available in the form.
• You enter the number with the country code and without extra characters.
• You have not requested many codes in a row.
• After signing in, you set up backup ways to access the account where they are available.

Frequently asked questions

Does ChatGPT always need a phone number?

No. Many ChatGPT logins are verified by an email code. A phone is most often required on the OpenAI platform before you create your first API key, or if you turn on SMS two-factor authentication.

Can I use a virtual number to verify the OpenAI API?

Yes, if OpenAI accepts the number for your country. Pick a country listed in the form, buy the number for OpenAI and enter the code from your order. The final decision is always OpenAI's.

What if OpenAI says the number cannot be used?

Try a different country instead of repeating the same request. A rejection before the SMS is sent usually concerns the country or the number range, not one particular number.

Do I pay if the code never arrives?

No. An order waits for the SMS for 15 minutes. If no code arrives, it is cancelled and the money returns to your Hush SMS balance automatically.