Menu | Settings | Call | Assisted Dialing.where could I find those options?
My dad is having the same problem. Facebook adds the 1 for you, I have an htc inspire (AT&T) and i do not have this problem. I have already tried everything suggested here and thought I would see if anyone else was having this problem. Nothing I have tried has fixed this issue, anyone else have any ideas?It looks like the only way to remove the +1 is to add the contact in yourself.
I've finally found the fix!
I sync all my contacts from Facebook, on the contact that has the +1 you need to create a new contact, with the name and # you want. It should link them together. Once linked, open the contact and long press 'call mobile'. You will now see an option to edit the #. Delete the +1 and save it!!
Finally! I was tired of getting error messages every rime I would text someone with a +1 in front of their #.
Sent from my Thunderbolt.
Every android phone i had always had the +1 on it.