What is a SIM card and do I need a new one?

If you have a 4G LTE unlocked GSM phone or data device and want to activate it on our GSM network, you will need to purchase a SIM card from Gen Mobile. Click here to purchase your SIM card and plan. Once you receive your SIM card in the mail, just call (833) 528-1380 or click here to chat with a Customer Care representative between the hours of 7 a.m. - 5:30 p.m. PST, 7 days a week.

All GSM SIM cards and most CDMA SIM cards come in three different sizes:

   • Standard SIM (15 x 25mm)

   • Micro SIM (12 x 15mm)

   • Nano SIM (8.8 x 12.3mm)

Carefully pop out the correct SIM card size compatible with your phone and install it on your phone. You can also call (833) 528-1380 or click here to chat with a Gen Mobile Customer Care representative 7 a.m. - 5:30 p.m. PST, 7 days a week if you need help.