In Reply to: sim cards. posted by cassidy on Saturday, 5. June 2010 at 10:46 Bali Time:
they can be seen because the locals predominately use mobiles (handphone) rather than land lines.
I like Merpati for price and reliablility. Each telco has a different prefix for cheap calls overseas. Merpati, for Australia, is 0101661 then the number dropping the initial 0. For texts use +61 then the number dropping the initial 0.