if the phone is a prepaid phone, no. if it came on a plan, or bought outright, yes
I don't think boost mobile has sim cards. It's a CDMA network but if they do only if the AT&T phone is unlocked .
I want to make sure I answer this question, after talking to tmobile, because there is sites that want to charge 40 bucks for unlocking your phone and I called T-Mobile asking if they would unlock the T-Mobile phone for use with boost Mobile and they said no problem. It takes about 24 hours and they email you the unlock code with instructions on how to do it. I guess it would be worth the money if you still had a contact or something but other then that... It's free!
If the Galaxy handset has been unlocked - yes.
An AT&T sim card will not work in an T-Mobile phone as it is locked to particular carrier itself... If you want to put your AT&T sim in your T-Mobile phone you can try unlocking your phone
Att and Boost Mobile have great pre-paid plans and new touch screen and smart phones for a good price.. Also it counts on your area where you live..Att has better coverage,,boost mobile is spotty on the rural areas...
Some cell phones are controlled with a SIM card. You may want to see if your AT&T SIM card will work a T-MOBILE phone.
It appears this can be done on most phones, however can be quite technical. The basic user of a mobile phone is unlikely to manage this successfully without assistance.
Could I put a simple mobile sin card to my HTC from ATT
If your phone plan includes mobile to mobile calling it does. If you're using prepaid it generally won't unless your on the $1 a day mobile to mobile plan.
No. The sim card would not be inter-carrier compatible.
Yes, usually. Phones with SIM cards, from ATT, T-Mobile, etc., for example can be. If you have a phone with a SIM card, you can buy a new phone, and slip the card into the new phone, and off you go. Phones from Verizon, Nextel, Boost, etc... that don't have SIM cards, I'm not sure off.
No, it is actually a T-Mobile phone.
Yes as long as the phone is att and has a sim card slot