can this sim card be used in my GSM phone (unlocked AT&T phone)?
142134
It worked with my unlocked AT&T; phone with 3G data in China, but not 4G or LTE in China.
142135
That was exactly what I used, an AT&T; unlocked iphone 4. I put in this SIM card while in US and immediately got the roaming signal (AT&T; as roaming carier in US) and welcome text message in Chinese. It worked great in China.
1558786
If AT&T; uses SIM cards then it would. As I understand it though it is not a GSM network, meaning you don't need a SIM card to connect to the network. This phone is specifically for GSM network use. So companies like T-Mobile, Walmart Family Plan, and Virgin Mobile would work with this phone. A simple Google search like "is (insert provider name) a GSM network?" should help you know if this phone will work with your provider.
1324665
If you use at&t; you can put 3g or 4g sim cards in it and it will work. AT&T; just started giving the cards for free just ask. They won't offer it to you. So remember to ask. I hope this helps I love mine.
357114
I don't know, it is designed for that, however it also accepts global sims, I am using it overseas currently and haven't been home to test it on at&t;, but it should work.
1210757
The phone will take any GSM network, so make sure AT&T; uses GSM and yes, the phone is unlocked so it should take any hyper sim card you give it.
1792798
Yes I'm using it with at&t, you will get 3.5 G or HSPA+ with at&t . Therefore it will work with others GSM carriers around the world.
1578777
If your phone is GSM (most likley it is) then it will work. There are plenty of SIM cards for sale that say AT&T; right on them. Why not get one of those? Then you can be sure.
388829
Absolutely. I have a go phone account and there have been no issues. As a rule of thumb most gsm phones can work with a go phone sim card. You may have to set it up with AT&T;, but not with this phone.
892491
Yes you can use AT&T; simcard, this phone is unlocked so it works with any mobile operator. I use T-Mobile
2070992
You do can use it on AT&T; or any other GSM network as long you have the UNLOCKED version. If you happen to buy the T-Mobile one, well, that one WILL NOT work with AT&T.;
279832
Yes, you can. They say the phone must be compatible with AT&T, which this on is. It has Quad band EDGE 850/900/1800/1900MHz and 3G 850/1900 MHz so it will work very well.
215448
Yes, you can use for any GSM service(t-mobile, At&t and more) which uses SIM card.
609108
Most likely yes but you should confirm with AT&T; as there are multiple SIM card sizes based on the phone manufacturer and operating system.
1908645
If the phone is unlocked you can use in any country with GSM network. Make your Att iphone is unlocked.
2185750
Just use deferent SIM card like t mobile or simple mobile or any other card and see, because the unlocked phone works only for AT&T; Good luck
869707
Greetings,Yes, it can be used with AT&T; and it's unlocked to any SIM card.We are at your disposal. Do not hesitate to contact us if you have questions.We appreciate your trust and hope to meet your expectations.Yours Sincerely,Hanna OliverCustomer Service,HIGH-TECH GLOBALhttp://www.amazon.com/shops/high-tech
775477
This phone works with AT&T.; I have been using it with AT&T; for 6 months. GSM means the phone uses a SIM card. CDMA does not.