Area Code +63-78-(6420000...6427999) located in Roxas, 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 : 6420000 Subscriber Number To : 6427999 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 : Roxas Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 17.1200 Longitude : 121.6200 ‹ previous : +63-78-(6363000...6363999) next › : +63-78-(6428800...6428899) Dialling Instructions For trunk calls: 0 78 6420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 6420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6420000 ~ 6427999 (Count: 8,000) Example: +63-78-6420000 / 0063-78-6420000 (078-6420000 / 0-78-6420000) +63-78-6420001 / 0063-78-6420001 (078-6420001 / 0-78-6420001) +63-78-6420002 / 0063-78-6420002 (078-6420002 / 0-78-6420002) +63-78-6420003 / 0063-78-6420003 (078-6420003 / 0-78-6420003) +63-78-6420004 / 0063-78-6420004 (078-6420004 / 0-78-6420004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-6427995 / 0063-78-6427995 (078-6427995 / 0-78-6427995) +63-78-6427996 / 0063-78-6427996 (078-6427996 / 0-78-6427996) +63-78-6427997 / 0063-78-6427997 (078-6427997 / 0-78-6427997) +63-78-6427998 / 0063-78-6427998 (078-6427998 / 0-78-6427998) +63-78-6427999 / 0063-78-6427999 (078-6427999 / 0-78-6427999)