It’s SIM free, so just add a micro SIM card (any network) The phone is unlocked as it is from Apple, so you can use any network micro sim card. I’m on BT and I get a signal everywhere I go. (Based in North Wales) Any one you want. You use your own SIM card. I use 3 network It's not locked on any network.####[['network', 'Signal#Signal of Mobile Network', 'positive']]