Will my unlocked iPhone 5 (AT&T) work with Orange?

I'm going away in a couple of months to where orange is the only carrier. My iPhone 5 is factory unlocked, if I get an Orange Microsim (bought one on eBay that's someone cut down to micro sim) will it work on my phone?

Yes once the phone is factory unlocked its set to work with ANY GSM carrier world wide.

Yes, absolutely. IPhone 5 takes nano-SIM so get the nano and your phone will work perfectly on Orange.

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