Ultra Mobile Sim Preloaded with 29.99 Unlimited Talk, Text, International Text and Data 100MB on 4G (T-mobile Network) Plan Red Sim 1000 Free International Minutes Technology: GSM on the 1900 Mhz band with GPRS, Edge and HSPA+ data support. LTE and HSPA+ service on the 1700 Mhz AWS band Voice: Unlimited Domestic Phone Calls, Text: Unlimited Text Domestic & International Data: 1GB at 4G speeds, Hotspot: No, Phone Compatibility: Unlocked GSM Phone International Calls: Unlimited calling to 55 countries + 1000 minutes to 45 additional destinations (Please see image for more details)