Guide · updated November 2026

Getting the WhatsApp verification code by phone call

By the Noir SMS team3 min read

Quick answer

If the SMS doesn't arrive, WhatsApp may offer 'Call me', where an automated voice reads the 6-digit code. It only works on a number that can receive calls, and it usually appears after a waiting period. Noir SMS numbers receive SMS only, so they can't use the call option. With a temporary number, stick to SMS; if it fails, cancel for a refund and try another number.

WhatsApp verifies new registrations with a 6-digit code, sent by SMS by default. When that doesn't work, it can fall back to a voice call. Whether that helps depends on the kind of number you're using, so here's how the call option works and where it doesn't.

When WhatsApp offers a call

The call option usually shows up after the SMS countdown ends without a successful code. Tap it and WhatsApp calls the number and reads the code aloud, often twice. Requesting a call counts toward WhatsApp's limit on attempts, so the wait before the next try can grow.

Why the call can fail

  • The number can't receive calls, like SMS-only rented numbers.
  • Call blocking or carrier spam filters reject the automated call.
  • The phone is in another country and roaming calls don't connect.
  • Voicemail picks up and the code is lost.

Temporary numbers and calls

Noir SMS numbers receive SMS only. They don't receive calls and can't make them. If WhatsApp sends the code by call, it won't appear in your dashboard. Choose SMS, and if the SMS doesn't arrive within 20 minutes the charge is refunded automatically.

Other ways WhatsApp may verify you

On some devices WhatsApp can also verify through a flash call or a code sent to an email you added before. Availability varies by device and account. For a brand-new registration, SMS is the method that works with a temporary number.

Frequently asked questions

Can a virtual number get WhatsApp's call?

Only if it can receive calls. Noir SMS numbers are SMS only, so use the SMS option.

Why does WhatsApp only offer a call?

Sometimes the SMS option is temporarily unavailable after several attempts. Wait for the timer, or start over with a different number.

Is the call code the same as the SMS code?

Yes, it's a 6-digit code you type into WhatsApp the same way.

Does asking for a call make me wait longer?

It counts as an attempt, so later waits can get longer.

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