You can also purchase television, home phone, Internet and mobile Internet services from the company.AT&T offers services and products to both residential and business customers.

Keep in mind, this is NOT “Jail breaking” or using “Software Unlocking” which is only temporary, and can Brick your i Phone once the firmware is updated via i Tunes.
Regardless of what firmware your i Phone 5S is, as long as your network is listed below from our drop down menu, can Factory unlock it.
Phone features Siri i Phone 5: Model A1428 (AT&T) or A1429 (Sprint/Verizon/CDMA Carrier) with an aluminum back and larger 4in screeni Phone 5C: Model A1456, A1507, A1529, A1532, A1516 or A1526 with a colored plastic backi Phone 5S: Model A1533 (AT&T/Verizon/T-Mobile), A1453 (Sprint) or A1457, A1530, A1518 or A1528 with an aluminum back and Touch ID fingerprint readeri Phone 6: Model A1549 (AT&T/Verizon/T-Mobile), A1586 (Sprint), or A1589 with a larger 4.7in screeni Phone 6 Plus: Model A1522 (AT&T/Verizon/T-Mobile), A1524 (Sprint) or A1593 with a larger 5.5in screen How Do I know my i Phone's capacity? The most accurate way to see the capacity is after wiping your phone.
For example, if you have a 16GB i Phone you might see 15.5 GB."Very easy transaction, I was extremely pleased with the offers I received on my used devices – much higher than most other comparable sites.
is proud to announce we will be able to officially Factory Unlock your i Phone 5S via i Tunes.
Once unlocked, it will remain factory unlocked in the Apple database.If you are having trouble identifying the model of the smartphone you have to sell, try looking for the model number on the back of the device that begins with "A" and is followed by four digits.Also, make sure you identify the carrier of your i Phone model since this can have a significant impact on the trade-in value. Buy Back World always offers an instant upfront buy back price quote and free shipping kit for every trade in.Automated services are available for most customer service numbers 24 hours a day. There is no mailing address listed for customer service, but customers can feel free to use the corporate mailing address for all correspondence. You may be asked to enter your zip code to determine service eligibility or for a personalized list of products available in your area.Not all products and services offered by AT&T are available in all areas.AT&T hides all contact information from customers unless they choose a specific problem they need help with from customer service.