Area Code +63-77-(6100000...6109999) located in San Nicolas, Ilocos Norte (ILN), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 77 Subscriber Number From : 6100000 Subscriber Number To : 6109999 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 : ILN Region Name : Ilocos Norte City : San Nicolas Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 18.1700 Longitude : 120.6000 ‹ previous : +63-77-(6080000...6089999) next › : +63-77-(6140000...6149999) Dialling Instructions For trunk calls: 0 77 6100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 77 6100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6100000 ~ 6109999 (Count: 10,000) Example: +63-77-6100000 / 0063-77-6100000 (077-6100000 / 0-77-6100000) +63-77-6100001 / 0063-77-6100001 (077-6100001 / 0-77-6100001) +63-77-6100002 / 0063-77-6100002 (077-6100002 / 0-77-6100002) +63-77-6100003 / 0063-77-6100003 (077-6100003 / 0-77-6100003) +63-77-6100004 / 0063-77-6100004 (077-6100004 / 0-77-6100004) ...+63-77-xxxxxxx / 0063-77-xxxxxxx (077-xxxxxxx / 0-77-xxxxxxx) ...+63-77-6109995 / 0063-77-6109995 (077-6109995 / 0-77-6109995) +63-77-6109996 / 0063-77-6109996 (077-6109996 / 0-77-6109996) +63-77-6109997 / 0063-77-6109997 (077-6109997 / 0-77-6109997) +63-77-6109998 / 0063-77-6109998 (077-6109998 / 0-77-6109998) +63-77-6109999 / 0063-77-6109999 (077-6109999 / 0-77-6109999)