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i believe so, if the phone (unlocked) would be operable if, the GSM version aligns with the providers GSM offering. in other words if an AT and T go phone sim card originally worked through a AT and T phone, and operated on the GSM 1900 bandwidth, then the unlocked phone would have to be capable of working on the GSM 1900 bandwidth. The phone and sim card originally come programmed to operate on a predetermined GSM code and these numbers need to match for swapping to work.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoYes, but it has to be a phone that can accept the sim card, and it must be unlocked by the previous company. ex. if you have a tmobile phone you want to use, call tmobile and have it unlocked, then put your att sim in. It is not recommended though due to data services will generally not work.
p.s.
Iphones can not be unlocked by anyone.
Wiki User
∙ 12y agoYes you can! as long as the phone is unlocked any sim card will work in it :)
Wiki User
∙ 13y agoMostly. but some features will not work as good, or sometimes in the begining it will work and then it will stop working.
Wiki User
∙ 12y agoIf the phone is unlocked you can use a sim card from any service provider, as long as the phone is built to take sim cards.
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Can you put att iPhone sim card in an att blackberry?
Yes as long as the phone is att and has a sim card slot
Can i use a att sim card in a trac phone?
Yes, provided your ATT phone is SIM unlocked.
Can you put your att sim card in your tracfone?
Yes, provided your ATT phone is SIM unlocked.
Can a att sim card work in a centennial phone?
The sim card will only work in a different phone if the phone is ulocked, in not, no
Can you transfer your ATT gophone sim card into another ATT non gophone and have it work?
I have been wondering this same question also. With my broken att goPhone I transferred the sim to a working RAZR v3 and an ATT Tilt. Niether of them worked as they both said no service. So the answer is NO.
Can you use a att sim card in a straight talk phone?
yes u can I had my att go phone unlocked and tried to use my sim card from st. talk which I found out uses att service towers in my area however, it didn't work. It stated "sim crash"
Can you use a prepaid sim card in a nonprepaid ATT phone?
no, your # and plan details are on you SIM
Is it normal for your ATT SIM card to not work in your old phone after inserting it in a new phone?
yes
what unlocked phones can be used with an ATT account We need to replace an ATT phone, don't want to pay retail for a new phone and aren't ready to renew the 2 year contract?
An unlocked phone can accept the SIM card from any cell phone provider. If you have an ATT SIM card, you can use it in an unlocked phone. A locked phone is created by the provider to force the use of its service; an unlocked phone can take any SIM card.
Can you flash a Verizon phone to ATT?
Yes, you can flash a Verizon phone to ATT. However, you will also need to insert a Verizon SIM card into the ATT phone in order for it to properly work.
I bought an unlocked Sony Ericsson s500i if I insert my old ATT GoPhone's SIM card into my new phone will the new phone get locked to ATT?
No the phone should not have a problem with reding the sim card as long as the sony ericsson is unlocked josh
The definition of an ATT Sim Card and the usage of it for cell phones.?
A sim card is a chip in your phone that holds information as to your phones identity such as your phone number. A sim card can be transferred to another phone allowing you to have to same phone number as well as your contacts.
