Can I put an AT&amp;T SIM card in it?
833006
No, the Optimus Showtime only operates on Net 10 and uses the Verizon Network. If you buy the LG OPTIMUS ULTIMATE it is the same phone except it operates on Walmart Straight Talk using the AT&T network. Neither phone will accept another carriers sim card.
144106
Yes, a Go Phone SIM card works right off the bat. A normal SIM card - you might need to go to the AT&T; store to give them the phone's serial number.
1267229
I don't believe so. They can't do that and plus this phone is an AT&T phone. You just pop your sim card in and it wotks automatically. But if they give you and issues just threaten to leave them for T-Mobile.
2051434
Yes you can do that. I used AT&T; phone before buying this phone and l have no problem with it.
425570
If you have an AT&T; SIMM card, you simply place it in the phone. That's what I did. I'm not sure how you activate it under it's prepaid abilities.
1388553
Mine came with a nano sim card. If you have a micro sim card all you will need to do is call up at&t; and they will switch it for you. Sp yes you can just put your at&t; sim card into this phone.
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.
892490
Yes you can use AT&T simcard, this phone is unlocked so it works with any mobile operator. I use T-Mobile
1851252
No, you can not. The SIM card is the card that registers the phone to the carrier. You're thinking of a Micro SD card, which is not supported by this phone.
2188561
yes, but a GoPhone sim card which does not work if you need a "regular" ATandT SIM card. The ATT store gave us a free replacement SIM card
1712648
You can put an active SIM card in any unlocked phone and it should work. I don't have AT&T; so I don't know if the features specific to AT&T; will work without any problem.
880793
I don't use At&t; but yes it can At&t; if they offer Sim cards. You still can call them to enquire.
1184578
Only if you're a at&t; contract customer . If your sim is a different size you'll have to take it to a at&t; store or retailer with at&t; to in stall the sim card they will also need phone serial & imei numbers
1755447
Your carrier, (AT&T;, Verizon, etc.) should be able to unlock it and put the appropriate sim in it.
37806
It doesn't have a sim card. If you have a regular one, it will fit in there.
1073857
I think you can. it is a normal ATT sim card, but is a monthly charge prepaid type.
299020
It is a smartphone and is unlocked so it will take any regular sized sim card from any company. I am not sure what at&t; considers a smartphone though to be able to say for sure.