Originally Posted by young707

We are shopping for prepaid cell phones for personal temp use. We are looking at Boost Mobile, Virgin Mobile, T Mobile & Cingular GoPhones.

Can you tell me which phone uses removable "SIM" card?
I think Virgin Mobile's Nokia Shorty is removable "SIM" card.

I want to know if I change plan between these providers, I can use the same phone, but different "SIM" card, correct? Then, I will not have to purchase new phone every time, right?

Keeping the same phone number is not important at all.

I often have to discontinue my personal mobile phone services for months or even for a year, because I am getting another cell phone from employer.

It's all about the network, GSM and IDEN networks use sim cards. GSM includes at&t, net10 and t-mobile, IDEN includes nextel / boost ( boost is the prepaid version of nextel) IDEN and GSM sim cards are not interchangeable.

You can buy unlocked GSM phones and interchange sim cards, you cannot use locked GSM phones on any network other than they were meant for.

SIM cards can only be used on the network they were meant for and cannot be interchanged with different providers.

Virgin mobile is on a CDMA network (phones on CDMA do not use SIM cards)

I hope this helps anyone looking at this old post

i am currently using boost on a nextel blackberry 7100I. i get unlimted everything and on a BlackBerry thats awesome! everything works fine and it uses boosts sim card for IDEN networks.

Does anyone know of a good worldwide SIM, that can be used anywhere?

Aren't all sim cards removable?

We are shopping for prepaid cell phones for personal temp use. We are looking at Boost Mobile, Virgin Mobile, T Mobile & Cingular GoPhones.

Can you tell me which phone uses removable "SIM" card?
I think Virgin Mobile's Nokia Shorty is removable "SIM" card.

I want to know if I change plan between these providers, I can use the same phone, but different "SIM" card, correct? Then, I will not have to purchase new phone every time, right?

Keeping the same phone number is not important at all.

I often have to discontinue my personal mobile phone services for months or even for a year, because I am getting another cell phone from employer.