Area Code +63-77-(6380000...6389999) located in Narvacan, Ilocos Sur (ILS), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 77 Subscriber Number From : 6380000 Subscriber Number To : 6389999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Philippine Long Distance Telephone Company (PLDT) Click here to buy Philippines Area Code Database Other Information Language Code : en (English) Country Number : 608 (Philippines) Country Code : PH (Philippines) Region Code : ILS Region Name : Ilocos Sur City : Narvacan Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 17.4200 Longitude : 120.4800 ‹ previous : +63-77-(6379000...6379999) next › : +63-77-(6440000...6449999) Dialling Instructions For trunk calls: 0 77 6380000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 77 6380000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6380000 ~ 6389999 (Count: 10,000) Example: +63-77-6380000 / 0063-77-6380000 (077-6380000 / 0-77-6380000) +63-77-6380001 / 0063-77-6380001 (077-6380001 / 0-77-6380001) +63-77-6380002 / 0063-77-6380002 (077-6380002 / 0-77-6380002) +63-77-6380003 / 0063-77-6380003 (077-6380003 / 0-77-6380003) +63-77-6380004 / 0063-77-6380004 (077-6380004 / 0-77-6380004) ...+63-77-xxxxxxx / 0063-77-xxxxxxx (077-xxxxxxx / 0-77-xxxxxxx) ...+63-77-6389995 / 0063-77-6389995 (077-6389995 / 0-77-6389995) +63-77-6389996 / 0063-77-6389996 (077-6389996 / 0-77-6389996) +63-77-6389997 / 0063-77-6389997 (077-6389997 / 0-77-6389997) +63-77-6389998 / 0063-77-6389998 (077-6389998 / 0-77-6389998) +63-77-6389999 / 0063-77-6389999 (077-6389999 / 0-77-6389999)