1. D0gsballs's Avatar
    Hi all.

    apologies if this has been asked before.

    I've been searching the net for a couple of days now to try and find this answer. In Phone Settings there is My Phone Number. I've had my Lumia for a week now and migrated my number over from my old carrier. This completed three days ago, but the number in My Phone Number still shows the new number I got given, not my old number that has been ported.

    It's not a biggie I know, just wondering if anyone knows how to change this?

    11-01-2012 12:18 PM
  2. inteller's Avatar
    have you tried turning off the phone and pulling out the SIM, wait a few minutes and put it in and turn on?
    11-01-2012 01:23 PM
  3. D0gsballs's Avatar
    Yep tried that and still the same. I've asked T-Mobile but not heard back yet. I assume it's the sim but no idea why it hasn't updated.
    11-01-2012 04:19 PM
  4. bnvis's Avatar
    Has this been resolved yet? I'm having the same issue with the Lumia 820. I'm new to Windows Phone and haven't been able to find any settings for this. My number is recognised by call recipients though.
    11-12-2012 08:12 PM
  5. bnvis's Avatar
    Is this resolved yet? Having the same issue with the Lumia 820, though all recipients do receive the right number. Can it be changed in some settings?
    11-12-2012 08:15 PM
  6. D0gsballs's Avatar
    Yep it seems to have sorted itself out. I suspect it was resolved by logging onto the Windows Phone website and changing my number on there. It took a while but it seems to have finally updated on my phone.
    NormStrm likes this.
    11-14-2012 05:45 AM
  7. phander's Avatar
    I've got this problem too. You can see it in settings>about>more information. THe MDN number for me reports the wrong number (as it does in the main dialer settings).

    I've changed at WP site so I assume it's just a matter of waiting...? Otherwise we need the ##code that allows you to change the MDN.
    01-04-2013 08:04 AM
  8. sNathan's Avatar
    me too, but i've still can sending/recv text messege or make calling.

    phone > ... > settings
    show like this:
    my phone number

    *my country region code +62. As i know +62 = 0, in Indonesia
    01-09-2013 04:46 AM
  9. Yak93's Avatar
    Same issue as everyone above. Did you all manage to change your number?
    Updated mine on My Windows Phone but so far no change in handset settings.

    Dogsballs - do you know what corrected yours? Changing as above or did provider do something?
    Mine categorically states that the handset can't be changed from the original number on the first sim which sounds bonkers.

    Trivial but annoying
    07-01-2013 04:55 AM
  10. Amit Mittal's Avatar
    Go to https://www.windowsphone.com/en-gb/my/account

    Click on Update and change your number.
    03-03-2014 11:10 PM
  11. MartLea's Avatar
    Update to my previous post elsewhere on this issue. Called Three 3 who said they would send out a blank sim which I could then call to have activated with my ported (old) number. Why this can't update on my Lumia 620, WP8.1, I don't know. Will try resetting the number on windowsphone.com anyway.

    OK that didn't work. So will assume I need the blank sim. Meanwhile however I find I can no longer back up my phone, it fails at 96% with the error: "There was a problem backing up your settings. Try again later". Is this because the phone number on my phone don't match the phone number in my Windows account?

    Right, seems there is no way to edit the sim card phone number on Windows phones! Feature has been available on phones for years and still is on Iphone. Only way to do it is to find another phone - not Windows - that will edit the sim or take it to your network provider to edit as far as I can see.
    Last edited by MartLea; 06-11-2014 at 03:28 AM. Reason: New information
    06-10-2014 12:15 PM