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My experience (with AT&T prepaid in the US) is that SIM cards are associated with IMEIs and don't work with a new IMEI without my phone company approving it. So
by geofft 8y ago
My experience (with AT&T prepaid in the US) is that SIM cards are associated with IMEIs and don't work with a new IMEI without my phone company approving it. So it's not functionally different from CDMA. CDMA was fine; the overhead of swapping phones when I was on CDMA is comparable to the current overhead, and I don't recall anything else I missed from not having a physical SIM card.
- culturestate 8y agoOff the top of my head, I can't recall running into this anywhere I've been in the world (excluding the US) in the last few years. I carry a beater Android phone when I travel and I often swap it in for my iPhone in situations where I'm afraid I might lose or damage my phone (or it might get pickpocketed) and it's usually a seamless process with local prepaid SIMs.
- dijit 8y agoThis was regulated in the EU at some point. You’re no longer allowed to sell locked down phones. https://en.m.wikipedia.org/wiki/Unfair_Commercial_Practices_Directive_2005 https://en.m.wikipedia.org/wiki/Unfair_Commercial_Practices_...
- thatguy0900 8y agoHaving worked for att I can say this is definetely not the case, the sim card will work with any imei.
- joecool1029 8y agoSprint (and its resellers) is the only carrier in US with a technical reason to pair sim to device and it's because they rolled out their tech in such a wonky way that they now have 4 or 5 versions of same sized sim card in order to support all proprietary weirdness in each device.