1. Andrew Fratkin's Avatar
    I recently received an AT&T 640XL (RM-1063). If I unlock the phone, what US cell phone networks can I use the phone? (other than AT&T obviously)
    09-03-2015 08:25 AM
  2. xandros9's Avatar
    I don't know what data speeds you'll get, but T-Mobile and most any carrier EXCEPT Sprint or Verizon. (and the prepaid carriers and such that use their network, such as, I think, Virgin.)
    Andrew Fratkin likes this.
    09-03-2015 08:27 AM
  3. Beantool's Avatar
    You will get LTE speeds on any AT&T MVNO such as Net10 or Cricket. Straight Talk as well, but I'm not as sure on that one. The phone does NOT have to be unlocked to work on Cricket, I know this for s fact as that is what I'm doing
    09-05-2015 04:12 AM
  4. smunro622's Avatar
    i do cricket with my 640 xl no issues...
    Andrew Fratkin likes this.
    09-07-2015 07:41 PM

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