Why does this phone not work with a USA ATT sim card?
824443
The phone only works with certain bands, I also encountered the same issue with Wind Mobile in Canada. The phone works well with T-Mobile
1012114
Mine works anywhere at&t; works. I'm on straight talk though, they have a international plan, so I believe it will.
924366
No, this phone is for US Cellular and they don't use sim cards. You would need one for AT&T or T-Mobile or a GSM Unlocked phone. Thank you for your interest, Clayton Recellulartoo and Mobilekarma
1396267
This is an unlocked phone and as long as it one of the larger sim cards it will work. The only problem would be some of the smaller sim cards I know ATT was using with the latest Iphones.
964777
Not sure what do you mean. I just inserted the SIM card and worked. About AT&T, it is compatible with their bands.
1904103
I have a t-mobile sim and its been working perfectly. I live in the Chicago. Make sure the phone is fully charge and it should work with att and simple mobile also.
238002
I like my phone its wonderful It will work with ATT GSM (2g), 3g, but NOT ATT LTE since they only support band 17, 4, and 2. This international version only supports LTE 800(B20)/ 1800(B3)/ 2600(B7).
1210932
When I cam home to the US I purchased my sim from AT&T. It works great. I was using it in Brazil and using a TIM sim.
820167
Best I can figure it's that you might not be able to use US Sim cards with it. Check with your provider before buying it.
724695
Yes AT&T; works better than any i tried but they also are higher,now about mexico city i dont know ive never been there with this cell,but if u get a international sim with a international cell it should work i assume
2051433
the 3G network of AT&T; is WCDMA, and this phone support WCDMA, so it will still work with your SIM card
1684652
No its not ,i have purchses it and its unlocked and works fine ! , but maybe not sure if ur from the US its only work with AT&T; . For other countries its normally working and its unlocked
641264
Dear friends, thanks for your interest. This phone can work with AT&T.; You can use it in the Philippines. Thanks a lot!
2041105
Its for any company that uses sim cards. Att is one of them, so yes this phone works with att.
717804
Any cell that works with att and takes a SIM card the size you purchased should work. If the SIM card is too big or small for the phone you can purchase an adapter for the sim. Hope this helps.
2113584
Hey man,It works all the gsm network around the world. I'm using this with a straight talk SIM card. Which actually shares AT&T; network across nationwide. So I can say "YES".Hope this answer helps you. Have a good day
1267089
I have an AT&T voice and data plan in U.S. with a 3G sim card. It works without problems