Area Code +54-823-(3990000...3999999) located in Non-Geographic Services, more detail is as below. Place International Dialing Code : 54 International Prefix : 00 National Prefix : 0 National Destination Code : 823 Subscriber Number From : 3990000 Subscriber Number To : 3999999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : OPTIMA COMUNICACIONES S.A. Click here to buy Argentina Area Code Database Other Information Language Code : es (Spanish) Country Number : 32 (Argentina) Country Code : AR (Argentina) City : Non-Geographic Services Timezone : America/Argentina/Buenos_Aires Coordinated Universal Time : -03:00 Daylight Saving Time : No National Significant Number Minimum Length : 10 Latitude : -34.6100 Longitude : -58.4200 ‹ previous : +54-823-(3820000...3829999) next › : +54-823-(4010000...4019999) Dialling Instructions For trunk calls: 0 823 3990000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 54 823 3990000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3990000 ~ 3999999 (Count: 10,000) Example: +54-823-3990000 / 0054-823-3990000 (0823-3990000 / 0-823-3990000) +54-823-3990001 / 0054-823-3990001 (0823-3990001 / 0-823-3990001) +54-823-3990002 / 0054-823-3990002 (0823-3990002 / 0-823-3990002) +54-823-3990003 / 0054-823-3990003 (0823-3990003 / 0-823-3990003) +54-823-3990004 / 0054-823-3990004 (0823-3990004 / 0-823-3990004) ...+54-823-xxxxxxx / 0054-823-xxxxxxx (0823-xxxxxxx / 0-823-xxxxxxx) ...+54-823-3999995 / 0054-823-3999995 (0823-3999995 / 0-823-3999995) +54-823-3999996 / 0054-823-3999996 (0823-3999996 / 0-823-3999996) +54-823-3999997 / 0054-823-3999997 (0823-3999997 / 0-823-3999997) +54-823-3999998 / 0054-823-3999998 (0823-3999998 / 0-823-3999998) +54-823-3999999 / 0054-823-3999999 (0823-3999999 / 0-823-3999999)