Get sObject prefix
Pass object name in method parameter. *** public static void getPrefix(String objName){ Schema.sObjectType sObjType = Schema.getGlobalDescribe().get(objName); String prefixValue = (sObjType.getDescribe().getKeyPrefix()); System.debug('prefixValue##' + prefixValue); } *** OR you can get prefix value from here *** Schema.DescribeSObjectResult r = Account .sObjectType.getDescribe(); String keyPrefix = r.getKeyPrefix(); System.debug('keyPrefix##' + keyPrefix); *** Replace Account object from your object name.