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you were able to use your verizon phone on cricket because it is a gsm carrier...no sim cards...at&t has sim cards as well as tmobile...those phones apparently cant be unlocked to use with a non sim card carrier.

Um.... A 3 year old topic
 
You can use an unlocked iPhone on T-Mobile. They are great. :D

Ya T-Mobile is great in ripping you off at there booths that privately owned even at there own store they rip you off , I am waiting to unlock my iPhone and get out of T-Mobile . Bunch of thieves working there . T-Mobile is a no no no .
 
Cricket is CDMA. You won't be able to use any GSM phone on that, including the iPhone.

From their web site: "Transferring Service to Cricket®
If I transfer my wireless number to Cricket®, can I use the cell phone I already have?

You must have a Cricket® phone in order to use Cricket® service. Cricket® service uses a digital network that operates on Code Division Multiple Access (CDMA) technology."
Cricket uses AT&T towers. Cricket is a GSM network. I have no idea where you got your information from, but I wouldn't use that source again. Cricket should work on iPhone 3G
 
Cricket uses AT&T towers. Cricket is a GSM network. I have no idea where you got your information from, but I wouldn't use that source again. Cricket should work on iPhone 3G

Cricket used to be cdma.....then att bought them and made them gsm.....
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Cricket used to be cdma.....then att bought them and made them gsm.....

Cricket runs a CDMA network, and AT&T runs a GSM network. Within the next 12-18 months, AT&T will shut down Cricket's CDMA network and turn Cricket into AT&T's main prepaid brand, on AT&T's network.Mar 14, 2014

See....
 
Cricket was a ****** MVNO and is now a ****** ATT excess network capacity outlet. Still better then the garbage that is MVNOs like the downright criminal Tracfone...
 
I guess for the sake of posterity on this old thread, the following facts are true:

- Cricket was a small, regional CDMA provider that also acted as a Sprint MVNO and had a few other roaming agreements (this was the case when this thread was started).

- AT&T started their own prepaid GSM MVNO, Aio Wireless, in 2013 that ran on their network, but was sold completely separately and had taxes & fees included and a throttle.

- AT&T bought Leap Wireless (owners of Cricket) shortly after and in 2014 applied the Cricket brand to Aio (it got a redesign) and tweaked the plans slightly.

- Shortly after that (March 2015), the old CDMA network was phased out and those customers were either transitioned to Cricket's GSM network or left.

- This year, AT&T is moving all the Cricket customers off of third-party proxy servers (Jasper, XO, Zayo, etc.) and moving them in-house. With this migration, ping times have dropped to be in the same range as real AT&T service. The move also is paving the way for other modern technologies an features like VoLTE, Wi-Fi calling, and optional video throttling to save data usage.

Even though Cricket basically competes with prepaid brands like MetroPCS, Boost Mobile, and Virgin Mobile, AT&T has positioned it to compete against T-Mobile and Sprint, too (Aio was original conceived to fight T-Mobile on price without AT&T having to compete, among other things). iPhones tend to work great on the new Cricket and even AT&T-locked ones will work with no trouble (I bought a GoPhone 32GB SE from Best Buy for my dad), as Cricket appears to be using a former Cingular-era MNC that AT&T still supports on their devices.

There are certainly constraints (8Mbps throttle on LTE, very limited roaming, hotspot an optional purchase on some plans), but if you aren't picky, it's not a bad deal, especially if you have multiple lines on your account (groups are cheaper) and have good AT&T coverage.
 
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Cricket uses AT&T towers. Cricket is a GSM network. I have no idea where you got your information from, but I wouldn't use that source again. Cricket should work on iPhone 3G
Do you realize when you quoted this, Cricket was it's own CDMA carrier? It's GSM now, but it wasn't when the person you quoted wrote that.
 
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