Mobile Phone numbers

[sprayermick]

When you buy a mobile phone what determines the phones call number, is it built into the phone or is it on the sim card, in other words if I put my sim card into another phone
would that phone then have my number?

[woofgang]

yes if the phone was unlocked to accept any sim

[ChuckFickens]

It's the SIM card, so yes, as long as the other phone is either not locked to a network, or is locked to the network the SIM is on the other phone will get the number.

[sprayermick]

Thanks folks! it's just a friend of mine is selling his (unlocked) phone and I thought I might buy it but I wanted to keep my Number.