Not receiving your SMS code?

A code that does not arrive is almost always the receiving service rejecting the number, not a problem on your end. Here is why, and what fixes it. And you are never charged for a code that does not arrive.

Try a number

The short version

Most non-delivery comes from the service itself, WhatsApp, Telegram, Google, or a bank, blocking shared or VoIP numbers. Switching to a real carrier number (Non-VoIP AT&T) or trying a different number usually fixes it. If nothing arrives within 15 minutes, you are auto-refunded, so it costs you nothing to try again.

Why a code does not arrive

There are a handful of real, well understood reasons a code can fail to show up. None of them mean something is broken.

1The service flags virtual or shared numbers. The strictest ones are WhatsApp, Telegram, Google and Gmail, and Facebook. They run their own checks and quietly decline to send to numbers that look shared or virtual.
2The service rejects VoIP numbers specifically. Some platforms, especially banks and dating apps, reject VoIP lines outright and only accept a real, non-VoIP carrier number.
3The number was recently used for that same service. If a number verified that service a short time ago, the service can block the repeat request on the same number.
4Normal carrier routing delay. Even on a healthy number, delivery can take a minute or two while it routes between carriers.
5Factors on the service's side. Your account status, IP address, or device can affect the service's decision to send at all. That part is outside our control, but a fresh number and the right pool usually clears it.

What to do, in order

Pick Non-VoIP AT&T for strict services

For WhatsApp, Telegram, banks, and dating apps, choose the Non-VoIP AT&T pool. It is a real carrier line, so it passes checks a VoIP number fails.

Try a different number

If still nothing arrives, request a different number. Some individual numbers get flagged even within a good pool, so a fresh one often clears it.

Request the code again after about a minute

Normal routing delay can take a minute or two. Ask the service to resend before assuming the number is blocked.

Try an equivalent service option if one is offered

Some services offer more than one way in, for example SMS or a call. If an alternative is available, it is worth a try.

You only pay for codes that arrive

Pricing is per code. VoIP High Quality numbers are $0.50 per code, and Non-VoIP AT&T numbers are $0.99 per code, except Telegram and WhatsApp, which are $1.50 on that pool.

If a code never arrives, the order is auto-refunded to your wallet within 15 minutes, so a failed attempt costs you nothing. Numbers are never resold: every number is single-use and returned to the carrier after use.

No code, no charge, automatically, no support ticket needed.

Frequently asked questions

Why didn't I get my code?+

Almost always because the receiving service (WhatsApp, Telegram, Google, a bank, and similar) flagged the number as shared or VoIP and declined to send. It is rarely a problem with your device, your connection, or asms.ai itself.

Which numbers work best for WhatsApp and Telegram?+

The Non-VoIP AT&T pool. It is a real carrier line, so it passes checks that a VoIP number often fails on strict services like WhatsApp and Telegram.

Do I get refunded if no code arrives?+

Yes. If a code never arrives, the order is auto-refunded to your wallet within 15 minutes. You only pay for codes that actually arrive.

Can I just try another number?+

Yes, and it often works. Some individual numbers get flagged even within a good pool, so picking a different number is a normal part of getting a code through.

Is it my phone or my IP causing this?+

The receiving service makes the call, and factors on their side such as your account status, IP, or device can play a part. That part is outside our control, but a fresh number and the right pool usually clears it.

Get a code that arrives.

Pick the right pool for the service you need and receive your code in seconds. No charge if it never lands.

Try a number More FAQs