Contact names does not appear on iMessage on iPad
I have a problem where my Contact name does not apear in iMessage on my iPad if my Contact in addressbook does not have a "+1" infront of the contact number.
On my iPhone and on my computer is show the Contact name fine - it is only on the iPad that it does not show name - it will just show the number in format +1 and rest of number
If I go to my addressbook and add the "+1" infront of number and the name appear on my iPad.
I went to 2 Apple stores and they could not help and suggest to totally reset my iPad and then restore from computer backup, but it did not help.
I have over 2000 contacts and does not want to go one by one and add the "+1"
is there a way to get the "+1" add to all my American contacts? Or fix that all contact names show on my iPad even if they dont have +1 infront of number?
iPad (3rd gen) Wi-Fi + Cellular, iOS 6.1.3