Hi, I have a BB 6930 i believe ? i think its called a tour? its an american phone (us cellular) and I am using it in Ireland. The problem is the phone automatically puts the american area code (001 i think) before my numbers thus my phone thinks i am sending international messages and my network charges me for these messages even thought they don't go outside Ireland, Is there anyway i can change it to the irish area code? (00353)

Surely you mean 9630.

If so, try this from the user manual >> Set the default country code and area code - User Guide - BlackBerry Tour 9630 Smartphone - 5.0