Verify an OpenAI or ChatGPT account without your own number
OpenAI asks for a phone number at sign-up and refuses most of the obvious shortcuts. What a virtual number covers, what it costs, and the country choice that decides whether it works.
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Notes on virtual numbers
How the numbers work, why codes go missing, and what the catalogue figures actually mean. Written by the people who run the rail.
Verify a Google account without using your own number
Google asks for a phone number on most new accounts and is stricter than almost anything else about which ones it takes. What works, what does not, and the mistake that costs people the account later.
Non-VoIP numbers: why services reject VoIP
Platforms do not guess. They look your number up in the carrier databases before they send anything, and the line type they get back decides it. Here is what that lookup sees.
Free SMS numbers: what they actually do, and where they stop
Public inboxes are genuinely useful for some things and hopeless for others. Here is the line between the two, and how to tell which side your sign-up falls on before you waste an evening.
One-time code or rental: which number do you need?
One covers a single sign-up and goes back. The other stays reachable for weeks. Picking the wrong one is the most common way to pay twice.
Why your verification code never arrived
Seven reasons a code does not land, in the order worth checking. Most of them are fixed in under a minute, and none of them cost you anything.
How SMS verification actually works
A code lands on your phone in four seconds and nobody explains what happened. Here is the whole path, from the sign-up button to the six digits — and where it breaks.
WhatsApp verification without your own number: what works and what does not
WhatsApp is the strictest of the big services about virtual numbers. Here is what actually gets through, and why the cheapest line is the wrong one to pick here.
How to verify Telegram without your own phone number
Telegram will not create an account without an SMS code. Here is how a virtual number covers that step, what it costs, and the three things that make it fail.
Are virtual numbers safe to use — and are they legal?
Two different questions that get answered as one. The legal answer is short; the safety answer depends entirely on what you put behind the number.
Which country should you pick for an SMS verification number?
Price is the worst way to choose and the one everyone uses. Here is what actually predicts whether the code arrives, and how to read the country pages.
How much does an SMS verification number cost?
Prices start at $0.07 a code and go up by a factor of fifty. Here is what moves them, and why the number on the page changes between two visits.
Where to start
Three ways in, depending on what you came for.
- How it works What a virtual number is, how a code actually travels, what it costs and whether any of it is legal. Start here if you have not bought one before.
- Guides Step by step, service by service — which country to pick, in what order to do things, and what to set up before the number goes back to the network.
- Troubleshooting The code did not arrive, the service refused the number, the account is asking again. What each symptom means and what actually fixes it.