can a at&t phone work with sprint?
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Can I use my AT&T phone with another carrier? Yes. ... AT&T uses GSM and so does T-Mobile. But if you're hoping to switch to Sprint or Verizon, both companies use CDMA technology, so you'll have to check if your device will work with those networks first.
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You'll have to have a somewhat recent iPhone — support runs from the iPhone 5 up through the iPhone X — and even then, not all of those iPhones are compatible. Because Xfinity Mobile piggybacks on Verizon's network, the phone has to be one that can connect to Verizon. ... Newer iPhones bought through Sprint work, too.
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While GSM is the standard for most carriers around the globe, Sprint and Verizon in the U.S. still use CDMA. While Apple hasn't shared the iPhone X's exact cellular specifications on its website, it does let us know that the AT&T and T-Mobile variants will be GSM only and won't work with Verizon and Sprint.
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Sprint and Verizon Wireless use the CDMA network and GSM is used by T-Mobile & AT&T. For other postpaid and prepaid carriers, they often 'pay one of the four networks' to use their network.
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If you're hoping to use your unlocked T-Mobile phone on AT&T, you should have no problems. Both carriers run their networks on GSM technology, so once your phone is unlocked, just pop in your new AT&T SIM card and you'll be up and running.
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T-Mobile. If you're hoping to use your unlocked AT&T phone on T-Mobile, you should have no problems. Both carriers run their networks on GSM technology, so once your phone is unlocked, just pop in your new T-Mobile SIM card and you'll be up and running.
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However, there's an important caveat here when it comes to AT&T and T-Mobile: while the SIM-free iPhone 8 will work with CDMA carriers (like Verizon and Sprint) and GSM carriers (like AT&T and T-Mobile), the iPhone 8 for T-Mobile and AT&T will only work with other GSM carriers.
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On AT&T, most GSM unlocked phones will work with it's 3G and 4G LTE network with a simple SIM card swap. ... You can check to make sure your phone is compatible by checking it on AT&T's BYOD page.
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All iPhone 5s have both GSM and CDMA hardware. Unlocking only Applies to the GSM portion of the iPhone. To use Sprint, Sprint would still need to activate the CDMA portion of the iPhone on their network for 3G and lower network access, and they are known to reject earlier iPhones.
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Most newer phones work with both GSM and CDMA technologies, so you don't have to worry about what kind of phone to get or which carrier to switch to. ... If you bought it from Sprint or Verizon, it'll probably only work on CDMA compatible carriers.
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It'll work if you have a Straight Talk SIM that's backed by the T-Mobile network. If the phone is unlocked, you can use Straight Talk SIMs backed by the AT&T network as well. Yes, its just a SIM card that is connecting to the network.
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All T-Mobile and AT&T devices are compatible with one another when you switch carriers. They both run off the same software technology, GSM. GSM devices are compatible across the board. All Sprint, Verizon and US Cellular devices are not compatible with one another when you switch carriers.
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Well GSM networks like US Mobile, T-Mobile, and AT&T use removable SIM cards. This means that unlocked phones from other American GSM carriers will work on US Mobile's network. On the other hand, Verizon and Sprint are CDMA carriers. CDMA carriers don't use SIM cards and most CDMA phones are locked into their network.
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Jitterbug phones are not compatible with AT&T's Wireless network and are locked to work only with the GreatCall network. ... Also, there are no AT&T smartphones similar to the Jitterbug Smart2, but you can choose any AT&T smartphone that can be switched to the easy mode.
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Sprint | Bring Your Own iPhone Its not all bad news though, as long as your device is unlocked and has previously run on the Sprint network you will be able to switch to a carrier operating on Sprint's network (Sprint MVNO). Older Sprint iPhone models 4, 4s and 5 are only compatible with Sprint's CDMA network.
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AT&T phones have GSM bands so any android, iPhone or Windows phone that has been network unlocked from AT&T should work on Metro PCS.
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Virgin Mobile runs off of the Sprint network and AT&T runs off of their own network. Sprint uses CDMA technology while AT&T runs off of GSM technology. These two technologies are normally not compatible with one another as they are designed with unique band frequencies. Virgin Mobile phones are Sprint-branded phones.