The past Thursday on my country all the phone numbers changed from 7 digit to 8 digit numbers...

Now the problem is that right after that I was not able to send or receive SMS messages, so I formated my iPhone with a new firmware and I was able but to send but not to receive any SMS messages.

after that I tried to install diferents firmware versions, now I'm on 1.1.3

The problem ONLY appends on an iPhone so if I move my sim to another phone i just get all the messages..

Any idea of what can I try????