Area Code +63-78-(6545000...6545999) located in Naguilian, Isabela (ISA), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 78 Subscriber Number From : 6545000 Subscriber Number To : 6545999 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 : ISA Region Name : Isabela City : Naguilian Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 17.0300 Longitude : 121.8400 ‹ previous : +63-78-(6543000...6543999) next › : +63-78-(6547000...6547999) Dialling Instructions For trunk calls: 0 78 6545000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 6545000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6545000 ~ 6545999 (Count: 1,000) Example: +63-78-6545000 / 0063-78-6545000 (078-6545000 / 0-78-6545000) +63-78-6545001 / 0063-78-6545001 (078-6545001 / 0-78-6545001) +63-78-6545002 / 0063-78-6545002 (078-6545002 / 0-78-6545002) +63-78-6545003 / 0063-78-6545003 (078-6545003 / 0-78-6545003) +63-78-6545004 / 0063-78-6545004 (078-6545004 / 0-78-6545004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-6545995 / 0063-78-6545995 (078-6545995 / 0-78-6545995) +63-78-6545996 / 0063-78-6545996 (078-6545996 / 0-78-6545996) +63-78-6545997 / 0063-78-6545997 (078-6545997 / 0-78-6545997) +63-78-6545998 / 0063-78-6545998 (078-6545998 / 0-78-6545998) +63-78-6545999 / 0063-78-6545999 (078-6545999 / 0-78-6545999)