How to receive SMS codes and OTPs online, without your own SIM
Quick answer
An OTP sent by text message can be received online: rent a temporary mobile number in the Noir SMS dashboard, type it into the app that asks for verification, and the code shows up on your screen a few seconds to a few minutes later. Pick the app by name if it's listed, or "Any other" if it isn't. This only works for codes sent by SMS, not for ones sent by email, voice call, push notification or an authenticator app. If nothing arrives within 20 minutes, the charge goes back to your balance.
In much of the world people say "OTP" for the code an app texts you, and that's usually what they type into a search box. Here's how to get one on a number that isn't yours, and the cases where it won't work.
Which OTPs can a rented number receive?
Only the ones that travel as a normal text message. Apps decide how to send their codes, and many offer more than one channel, so check which one the screen in front of you is using.
| How the code is sent | Works with a Noir SMS number? |
|---|---|
| SMS text message | Yes |
| SMS from a short code (5 or 6 digits) | Usually, but some short codes only reach local carriers |
| Voice call that reads the code | No, numbers are SMS-only |
| No, use your inbox | |
| Push notification on another device | No |
| Authenticator app (TOTP) | No, the code is generated on your phone |
| Inside WhatsApp or Telegram | No, unless the app falls back to SMS |
When the app isn't in the list
Plenty of smaller apps, local stores and websites aren't listed by name. "Any other" is built for them: the number is set up to receive from senders that don't have their own entry. If an app is listed, pick it by name instead, since those numbers haven't been used for that app before.
Step by step
- Find the app in the listSearch for the app or website that wants to text you. If it isn't there, choose "Any other"; that option catches senders that aren't listed by name.
- Choose a countrySome apps only accept numbers from certain countries. If you don't know, the United States, Canada and the United Kingdom are accepted by most international apps.
- Paste the number into the appCopy the number from the dashboard and ask the app to send the code. Watch the country code: the app usually wants it chosen in a dropdown, not typed twice.
- Read the codeKeep the dashboard tab open. When the SMS lands you'll hear an alert and see the digits, ready to copy.
Why the OTP sometimes doesn't arrive
Whatever the reason, you aren't charged for a number that never got a code: it's refunded automatically after 20 minutes, or you can cancel it yourself 2 minutes after buying.
- The app rejected the number before sending, often with a message like "invalid number". Cancel it and try another country.
- The app sent the code by voice or by WhatsApp instead of SMS. Look for a "send by text" link.
- You requested several codes quickly and the app is rate-limiting you. Wait a minute before asking again.
- The country code was entered twice, so the text went nowhere.
What a temporary OTP number is good for, and what it isn't
It's handy for signing up to an app without handing over your personal number, for a second account of your own, or for an app that wants a number from a country you don't live in.
It isn't a long-term number. Once the reservation ends, you can't get a code on it again, so add your own phone, email or an authenticator to any account you plan to keep. Use these numbers only for your own legitimate accounts; bank, fintech, crypto-exchange and identity checks are off-limits.
Frequently asked questions
Is OTP the same as an SMS code?
Not exactly. OTP means any one-time password, and SMS is just one way to deliver it. When people search for an OTP number, they nearly always mean a code sent by text.
Can I receive more than one OTP on the same number?
Yes, while the number is still active you can ask for another SMS on it at no extra cost.
How long do I have to use the code?
That depends on the app, but most OTPs expire within a few minutes, so enter it as soon as it shows up.
Do I need to install anything?
No. Everything happens in the browser, on a computer or a phone.
How do I receive an SMS code if I don't want to use my number?
Rent a temporary number for that app and country in the Noir SMS dashboard, type it into the app, and the SMS code appears in your browser a few seconds after the app sends it. If no code arrives within 20 minutes, the charge goes back to your balance. Use it only for your own accounts.
Services in this guide
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