Area Code +63-78-(6649000...6649999) located in San Mateo, 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 : 6649000 Subscriber Number To : 6649999 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 : San Mateo Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 16.8800 Longitude : 121.5800 ‹ previous : +63-78-(6648000...6648999) next › : +63-78-(6720000...6729999) Dialling Instructions For trunk calls: 0 78 6649000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 6649000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6649000 ~ 6649999 (Count: 1,000) Example: +63-78-6649000 / 0063-78-6649000 (078-6649000 / 0-78-6649000) +63-78-6649001 / 0063-78-6649001 (078-6649001 / 0-78-6649001) +63-78-6649002 / 0063-78-6649002 (078-6649002 / 0-78-6649002) +63-78-6649003 / 0063-78-6649003 (078-6649003 / 0-78-6649003) +63-78-6649004 / 0063-78-6649004 (078-6649004 / 0-78-6649004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-6649995 / 0063-78-6649995 (078-6649995 / 0-78-6649995) +63-78-6649996 / 0063-78-6649996 (078-6649996 / 0-78-6649996) +63-78-6649997 / 0063-78-6649997 (078-6649997 / 0-78-6649997) +63-78-6649998 / 0063-78-6649998 (078-6649998 / 0-78-6649998) +63-78-6649999 / 0063-78-6649999 (078-6649999 / 0-78-6649999)