iPhone not receiving Apple account verification codes

vasska wrote:

My iPhone is not receiving verification codes.

Remove entirely any VPN you are using.

From: Suddenly not getting texts for two factor… - Apple Community

Q: Suddenly not getting texts for two factor authentication on iPhone

A: Reset network settings:

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings

If after all that you still can’t receive verification codes, you can request account recovery to regain access to your account [ How to use account recovery when you can’t reset your Apple Account password - Apple Support ]. Account recovery might take a few days or longer, depending on the specific account information you can provide to verify your identity.

Once you can sign in again, add more trusted numbers and recovery contacts to your account as suggested earlier.

Set up an account recovery contact - Apple Support

Did you check, if your phone and phone number is still listed as a trusted device?

Get a verification code and sign in with two-factor authentication - Apple Support

Is this phone your ONLY Apple Device ?

(Since you’re now “in” … don’t want you to get inadvertently locked “out”)

Do you have another Apple Trusted Device which IS receiving codes? (i.e. iPad, Mac)

Have you established additional Trusted Numbers (another cell phone and/or landline) and verified that they DO receive the codes?

NOTE: Trusted Numbers are different from — and in addition to — your Trusted Devices.

See additional detail here:

Two-factor authentication for Apple Account - Apple Support

Ok. You DEF want (need) to get some additional Trusted Numbers working first — and TESTED — before any further “troubleshooting” is attempted.

Two-factor authentication for Apple Account - Apple Support

These can be virtually any number worldwide; both “text-capable” mobile phones AND “voice-only” landlines.

These Trusted Numbers are what you will NEED to receive the verification code if your only device is ever lost, damaged, or stolen.

Okay, I see what you are doing now.

1) I see you have a me.com account. I don't know if this is the reason but those old me.com accounts are a not-infrequent core of issues found in this community. Just an observation.

2) If none of our suggestions have worked then I suggest you contact Apple about this. We on this forum are just other everyday customers like yourself and we have no more resources than you already have (fewer in fact, since we do not have access to your account).

Refer to this page for Apple Support features ➔ Contact - Official Apple Support

Select from the presented options until you find a solution for your issue, or see if there is a chat or phone call contact method offered lower on the page under “Get more help” (you sometimes have to narrow down the options multiple times before this is shown). If you do not see your issue, keep experimenting with any series of selections until you reach one that offers a chat session or a telephone call and get the representative to redirect you.

I don't use 2FA so I can't check things firsthand. To me it appears to be all referring to a user with multiple devices. You said you only have this one device. As far as that is concerned I am very surprised that 2FA works at all for you. To me it would defeat the whole purpose of multifactor if all I needed was a single device to do all the authentication needed.

It texts are arriving as SMS that's cellular service. Codes/notifications would be arriving by WiFi.

Read this document about iMessage (blue), RCS (green) and SMS/MMS (also green) text messages --> What is the difference between iMessage, RCS, and SMS/MMS? - Apple Support

- iMessage = blue bubble. This is message sent between Apple devices only, over WiFi or cellular-data.

- Text Message = green bubble. These are 'regular' text messages (SMS) or a text+media messages (MMS) sent over a cellular text-messaging plan (note it says "Text Message" at the top). These can communicate between Apple mobile devices and non-Apple phones. RCS (Rich Communication Services) is a newer variant of this.