Can Iphone from be unlocked?

If i buy iphone 4 or 4s with at&t or verizon or sprint contract. Bring it to india and unlock it to use indian sims.

Verizon and sprint are CDMA so they can't, but ATT can.

Yes it can be done

If it's Verizon or Sprint phone, it must be a 4S as those are global capable. All devices are locked to the network they are purchased for. The carrier may unlock the device to be used with an international SIM card. This can be done, for most carriers, six months after you've activated the device on that carrier's network if you've paid your bill on time every month.

This won't be a problem in any case, even with Verizon or Sprint devices as even those have an IMEI and a SIM Card slot to work abroad. The only carriers that won't work with those CDMA-only carriers are any US based GSM carriers like AT&T or T-Mobile. So no worries, there won't be any problems in India.

AT&T is your best be… The others will not use SIMs.

you can unlock any AT&T iphone here: http://gsmunlocklabs.com/unlock-iphone/

Vrizon and sprint iphone 3gs and 4 can't be unlocked bur verizon and sprint iphone 4s can be unlocked as 4s's are global iphone…

http://www.ebay.in/sch/i.html?_nkw=unlock+iphone+4

you can go to above link and pay 300 rs and you will be permanently unlocked

You idiot