Helpful Links

Need help

Contributor

Need help

Hi, I got a phone that

Frequency:Tri band GSM 900/1800/1900 Mhz

Any one know if ATT SIM will works on this phone or not

 

Thanks!! 

Tags (1)
1,060 Views
Message 1 of 3

Re: Need help

There are two issues here. First, the phone must be SIM-unlocked if it originally came from another carrier than AT&T. Second, it'll work on the 1900MHz frequency that AT&T uses, but you may experience large coverage gaps because AT&T uses both the 850 AND 1900MHz bands. Phones without the 850 band (and no, 900 isn't the same thing) won't work as well as a phone that natively supports both of AT&T's bands.

Tags (1)
Message 2 of 3
Highlighted
Contributor

Thank you very much!!

 
Message 3 of 3
Share this topic
Announcements

iPhone 8 and 8 Plus is Here! Learn What’s New and How to Order

The Apple Watch Series 3 is Here! Learn how to have the freedom to go with just your watch!

The iPhone X (10) is on it's way!

Additional Support