Mobile Network Support and BandAlcatel 1L Pro have Hybrid Dual Sim Card Slots,Alcatel 1L Pro support all GSM Based network providers. Alcatel 1L Pro mobile device support 2G Band Frequency at GSM: 850/900/1800/1900 and Hight Speed 3G Network Band at WCDMA B1/B5/B8,Alcatel 1L Pro also support LTE based 4G Networks Support at Frequency level 4G LTE B1/B3/B5/B8/B38/B40/B41,comes with network handling support with Network settings and work offline with flight Mode.