iPhone Not Receiving Verification Codes? Fixes

iPhone not receiving codes? Check Unknown Senders filtering, Focus modes, the number on the account, and SMS settings. Here is the order to try them.

Check these first

1. Open Messages › Filters and look in Unknown Senders or Transactions.
2. Turn off Focus or Do Not Disturb.
3. Check Settings › Apps › Messages: Send as Text Message is on, and iMessage is working.
4. Turn Airplane Mode on and off to reconnect.
5. Restart the iPhone.

Deeper fixes

• Check for a carrier settings update in Settings › General › About.
• Remove blocked contacts in Settings › Apps › Phone › Blocked Contacts.
• Make sure your plan includes texts and roaming if abroad.
• Reset network settings as a last step (it removes saved Wi-Fi passwords).

Codes from one app only?

Then the problem is probably the app or your number, not the iPhone. See fixes by app.

Where codes appear on iPhone: verification codes on iPhone.

Two numbers on one iPhone

With a dual SIM iPhone, codes go to the number you gave the app. Check which line is set for iMessage and texts in Settings › Mobile Service, and that the right line is turned on.

FAQ

Why is my iPhone not getting verification codes?

Often filtered as an unknown sender, hidden by Focus, or a network issue.

Does iMessage affect verification codes?

Codes come as SMS, so make sure SMS works.

Will resetting network settings delete data?

It removes saved Wi-Fi and VPN settings, not photos or messages.

Related: codes on iPhone · not receiving texts · turn SMS on or off.