Can you explain with more detail and less caps, as I don't understand what you want help with

 

If you've ported your number in - which it sounds like - the temporary number will display until your number port is complete - which t-mob should have advised how long - usually up to 7 days

 

If you're asking to get the phone number currently in your phone, look under: Settings - About Phone - Status - My phone number.

 

Don't know if this is what you need, but if you put your sim in an old SE or Samsung phone you can edit the number on the sim and then that number should show up in your new X10.

 

There's another thread that covers this. Check my posts to find it.

 

You might find an answer here

http://androidforums.com/sony-ericsson-xperia-x10/80469-my-phone-number-issue.html