If iphone is unlocked can i use any sim card?

Just wondering if I pay money to unlock my iPhone so can I use any sim card?

Yes you can

I'm pretty sure not one hundred percent sure i got my iphone 4 that was unlocked and got a sim card from tmobile

Yes. Unlocked phones mean you can use any network sim cards. If it is locked you need to jailbreak it but i wouldn't recommend that.

To elaborate on the misleading answers:

It depends. If your phone is CDMA, you can use it on any CDMA network. If it is GSM, you can use it on any CDMA network. You can't use a CDMA phone on a GSM network and vice versa, regardless of whether it's unlocked or not. IPhone 5 uses SIM cards for both CDMA and GSM, but the rule still applies.

Yes, in jailbrocken iphone, you can easily use any kind of sim card. But not who are locked and not jailbrocken.

  • Will cutting my sim card work to use as a micro sim card? I just ordered an iPhone 4 and I need to cut the sim card to make it a Micro sim. Will it affect it. I have seen a bunch of video and already have the template it for it. I'm using simple mobile. Do you know if anything wrong happen to it?
  • Why can I not use any sim card in my iPhone even though it is unlocked? I got an iPhone from a friend who says that the phone is unlocked, but every sim card I try in it seems not to work, it keeps on coming up with the same message that "There's no SIM card installed in the iPhone you are attempting to activate. Please disconnect and insert a SIM card in the iPhone." when have clearly put one in. What can I do?
  • If i get a unlocked or sim free iphone Can I use any sim? Okay my moms is supposed to be getting the iPhone 6s and I live with my dad but I supposed to be moving back with her soon the thing is they have different cellphone company s. Anyways if I get the sim free iPhone will I be able to just put a SIM card in it without haveing to change contracts threw the phone
  • If i buy an unlocked iPhone, can I put any SIM Card in it? I want to buy an unlocked iPhone 4. I watched a video and you need to put a SIM card in to use it I think. Can I just buy like a Straight Talk SIM and just put it in the slot, and will it work? I'm not too good at understanding this stuff and it would help if someone told me.