This phone number is invalid at Two-Factor Authentication with an Aruba phone number.

Question

Level 1

4 points

This phone number is invalid at Two-Factor Authentication with an Aruba phone number.

I am trying to add a trusted phone number on my macbook which does not work. I was able to add a Dutch number but not my Aruban number. I can select +297 (Aruba) and when I add the rest of my phone number and hit continue an error pops up as in the screen below.

I was able to add this very phone number in my apple account id. But somehow it is not possible to add it for two-factor auth. The length is 7 numbers after the country code.

I hope someone has the solution.

Thank you!

MacBook Air 13″, macOS 26.0

Posted on Oct 24, 2025 12:59 PM

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Answer 1

Oct 24, 2025 3:05 PM in response to jeroen76

It might be as simple as the “new” number simply hasn’t propagated thru the various servers of the PSTN into Apple’s servers.

However …

You do understand that you don’t need to set your own phone as a Trusted Number ?

It’s already a Trusted Device and as such ALWAYS displays verification codes for your Apple Account.

See more detail here:

Two-factor authentication for Apple Account - Apple Support

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

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Answer 2

Limnos

Level 10

427,067 points

Oct 24, 2025 1:07 PM in response to jeroen76

Refer to this page for Apple Support for different countries ➔

Choose your country or region - Official Apple Support

Select your country (if you do not see your country, also look for "other" in regions; e.g., "Other Africa"), then "Choose a product". Click the "show" item under each category for more selections. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.

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Answer 3

Limnos

Level 10

427,067 points

Oct 24, 2025 7:46 PM in response to jeroen76

Have you tried contacting Apple about this? The people on this forum are simply customers like yourself. I am thinking that since this is security related it may have something to do with how Apple handles that. Apple doesn't share that information with the public so we don't really have access to the details that may explain the problem. Somebody from Apple might be able to.

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Answer 4

Oct 24, 2025 1:59 PM in response to jeroen76

Ok … is that number “live” and “online” now?

If so …

You might also try configuring it for a voice call delivery of the Verification Code vice SMS.

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Answer 5

Oct 25, 2025 3:01 AM in response to Limnos

Excellent points. Thanks for adding on.

Q for you:

I’ve always assumed that one could setup and use any number worldwide as a Trusted Number, as long as it was accessible via the PSTN.

This thread is causing me to “re-evaluate” that assumption.

Do you possibly know if this is indeed a valid assumption; or is one’s “accessible range” of Trusted Numbers somehow limited by the user’s Apple Account region ?

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