Hello everyone, If you are here,then you don't know your is 4G enabled or 3G. You come to the right place! Checking your SIM card is 4G or not is easy.Grameenphone made it easy for you. You can find out by simply dailing a USSD code on your numberpad. Please Dial *121*3232# GP will send you a return SMS, whethere you SIM is 4G or 3G. The SMS look like above. Or