this depends on where you are and where you are traveling too etc.
i am on the orange network and i find it great, other people will come on here and say diffrent, they may not be wrong its just their opinon.
use the web, look at where you are going to be using the phone, go on all the airtime providers sites that you are thinking of joining and just see what the coverage is like.
the phone you are using is a good phone, if the phone is unlocked you can buy a pay as you go sim card and off you go. if you want to keep the same phone number its a bit more work, you wwill need a code off your current aittime provider, then you can take your number with you to your prefered airtime provider, this takes about 5 to 7 days i think.
hope this is of some help?
ade.
hi,this depends on where you are and where you are traveling too etc.i am on the orange network and i find it great, other people will come on here and say diffrent, they may not be wrong its just their opinon.use the web, look at where you are going