Does this SIM card works on AT&amp;T locked Phones (device is already contract free)
895774
Yes it does, Net10 uses AT&Ts cell towers. Search YouTube on how to setup your data so it can work as well with Net10.
927052
The phone I purchased was "locked to ATT" and it worked just fine on my ATT plan. Locked means it works on one particular carrier, and in the case of the phone I bought that was ATT. HOpe this answers your question.
731380
Yes and no. I ordered this phone thinking it was unlocked and I could start using it on straight talk. When I got the phone I put the sum card and and the phone was locked. The seller said that it was unlocked for tmobile only. That's not the definition of unlocked in my dictionary but I went online to cellunlocker.net and paid another $30 but I got the code and it worked. Now it works just fine on straight talk. So yes it will work but you will have to get an unlock code for it.
1379897
I have used it with sim cards in Europe and Tmobile and At&t; in the US. It seems to work everywhere if it is unlocked. I do not believe you can relock it easily. Mine still uses the at&t; software to set up. Very little instructions to set it up, but by trial and error it works.
1078280
An Unlocked phone should work with any carrier. My At&t; sim went in well and worked perfectly even though it's already an At&t; phone.
1376773
my phone from new breed was unlocked, it worked with pre-paid att&t; sim card just fine. Not sure about other carriers... the phone's gsm / mhz may have to do with what carrier it can take? I'm not sure, you would have to research...
964776
Not sure what do you mean. I just inserted the SIM card and worked. About AT&T;, it is compatible with their bands.
930026
NO!!!!! It won't work on AT&T; either! If you buy a Straight Talk Activation Kit those Sim Cards will not work! They didn't for us. I ended up trading this phone to Walmart and purchased a VERIZON STRAIGHT TALK GALAXY 3, and it works everywhere! If you bought this phone send it back!
1260397
This is a AT&T phone and is already on AT&T Network. You will not need to unlock it to use it with AT&T. It is ready for use with AT&T.
892490
Yes you can use AT&T simcard, this phone is unlocked so it works with any mobile operator. I use T-Mobile
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.
1656735
Since it is an AT&T phone, you don't need to have it unlocked to use on AT&T prepay. Just put in a prepay simcard are you are good to go. And, no, the phone is not unlocked in that it can't be used on networks other than AT&T.
474856
This is a prepaid phone only, so if you have a contract phone you will not be able to use it. This phone will ONLY work on a prepaid plan.
357531
I don't live in the US Or have a AT&T; SIM But it is a GSM SIM phone and it's not locked3G is 850/900/2100 LTE IS 900/2100/2600Find out what bands your SIM works on.
2051433
the 3G network of AT&T; is WCDMA, and this phone support WCDMA, so it will still work with your SIM card
905811
yes. we have at&t and the sim card from their contract phone works just fine.
1507508
Yes. It works with AT&T; locked phone. I am using one with a locked phone itself.