Loop sim card just only u can use only in mumbai only when I come to my home means in town ther is no range for it so a blocked my loop sim card and started to use other sim cards and also ther is many problems while calling and also network problems mostily its recharge is not available at every place so it just dum of use so guys I think its not good for use because if need to at other place u need to buys or have a other sim cards because ther is no network at every places while travelling it is not good for use also its networks problems occurs.