By David Chen · AI tools · 2026-09-03 · 6 min read
You're partway through setting up an account — ChatGPT, an OpenAI developer login, or any of the dozens of tools that now ask for one — and the flow stops at a phone field. Enter a number, wait for a text, type the code back in. Simple, until you're outside the US and the code never arrives. The service wanted a US number, and your local SIM isn't one.
The good news: receiving that code on a real US number is straightforward. The catch is that most quick fixes people reach for are unreliable in ways that only show up after you've wasted an hour. Here's why the free options fall over abroad, and what a dependable setup looks like.
When a signup asks for your number, it hands that number to an SMS provider, which routes a short one-time code toward the carrier that owns the number. Two details decide whether it lands. First, the code is only good for a minute or two, so delivery has to be fast. Second — the part people skip past — whoever can read that text can finish the verification. The source of your number matters as much as the country code in front of it.
So the question isn't only "how do I get a US number." It's "how do I get a US number that reliably receives the text and that nobody else can read." Those two requirements quietly rule out most of the free routes.
Three options come up again and again, and each breaks in its own way.
Free "receive SMS online" sites. These list public numbers anyone can use, and that's the whole problem. The inbox is open to the world, so any code sent to that number sits there for every visitor to read. If you're mid-signup, a stranger can see your code before you do. On top of that, these numbers are usually already registered on the popular services — so you get "this number is already in use" — and they're frequently blocked. Fine for a throwaway test you don't care about. Not a place to verify an account you intend to keep.
Google Voice and TextNow. Both are solid US products, but they gate signup to the US or North America. Try to register from India, Nigeria, Pakistan, or most of Africa and you'll hit a wall — the account either won't create or gets flagged and stops working. They were never built to onboard users from outside their home region.
Shared or burner-pool apps. Some paid apps rotate a pool of numbers between many users. Better than a fully public site, but you don't control the number long-term. If it gets recycled to someone else, you can lose access to any account tied to it — including the ability to recover that account later.
The answer to all three failures is the same: a real US number that belongs only to you and that you keep month to month. When the number is dedicated to your account, the code lands in your private inbox and no one else can read it. When it's a properly registered US number, services that only text North America can reach it. And because the number stays yours, the accounts attached to it stay recoverable.
Worth being precise about privacy: on a public SMS site the risk isn't hypothetical — the entire premise is a shared inbox. A dedicated number removes that exposure because you're the only person the number routes to. None of this is about getting around a service's rules. It's simply a real number that receives the verification text the normal way.
G100 is a US-registered app that gives you a dedicated US or Canada number — one that's yours, not pulled from a shared pool. Verification texts arrive in a clean inbox you open in the browser or the mobile app, from any country. There's no KYC to sign up, and billing is pay-as-you-go in USD. The number is a flat $1.95/month; inbound calls are supported too, and outbound calling runs $0.03/min if you want it. The number is WhatsApp-ready as well.
One honest note, because it sets expectations: outbound SMS sending on G100 isn't live yet. Receiving SMS and codes works today — which is exactly what the verification step needs. A service texts a code to your US number, you read it in your inbox, done. If your plan depends on sending texts from the number, wait for that feature; for receiving verification codes, the product does the job now.
| G100 dedicated number | Free public SMS sites | Google Voice / TextNow | |
|---|---|---|---|
| Available worldwide? | Yes — buy from any country | Yes, but public | No — US / North America only |
| Dedicated / private? | Yes — the number is yours | No — shared with everyone | Yes |
| Reliable code delivery? | Yes — private inbox | No — often used / blocked | Yes, if you can sign up |
| Price | Flat $1.95/month | Free | Free (US only) |
Read the table honestly: inside the US, Google Voice is hard to beat on price. The reason G100 belongs in this comparison is the top row — it's the option that actually onboards you from outside North America while still handing you a number you own and control.
Full rates are on the pricing page. Before you rely on it, run a quick self-test: have a friend text the number, or trigger a login code on an account you already control, and confirm it lands in your inbox.
Yes. With a dedicated US or Canada number from G100, verification texts arrive in your inbox in the browser or mobile app no matter which country you're in. The number is registered in the US, so services that only text North American numbers can reach you.
Those numbers are shared and public, so anyone can read the codes sent to them. They're also often already registered on the service you're trying to join, so it rejects them as already in use, and many are blocked outright. Use them only for throwaway tests, never for an account you want to keep.
No. Both require a US or North American setup and aren't available to sign up from most of Asia and Africa, including India, Nigeria, and Pakistan. If you're outside their supported regions you usually can't create or keep an account.
Yes. The number is dedicated to your account, not shared with other users. Verification codes land in your private inbox and no one else can see them, which is the main difference from public SMS sites.
A real US or Canada number that's yours, not shared. Receive verification codes in a private inbox from any country.
Get your number →