I have a LG GD 900 and the bands my phone supports are
2G NetworkGSM 850 / 900 / 1800 / 1900
3G NetworkHSDPA 900 / 2100
HSDPA 850 / 2100


So i was wondering of Wind or Moblicity would support my phone? both of these carriers use UMTS 4 or AWS and currently, im using GSM, and I dont really understand all of this so could someone help?