Area Code +63-78-(3550000...3559999) located in Tuguegarao, Cagayan (CAG), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 78 Subscriber Number From : 3550000 Subscriber Number To : 3559999 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 : CAG Region Name : Cagayan City : Tuguegarao Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 17.6100 Longitude : 121.7300 ‹ previous : +63-78-(3530000...3539999) next › : +63-78-(3560000...3569999) Dialling Instructions For trunk calls: 0 78 3550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 3550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3550000 ~ 3559999 (Count: 10,000) Example: +63-78-3550000 / 0063-78-3550000 (078-3550000 / 0-78-3550000) +63-78-3550001 / 0063-78-3550001 (078-3550001 / 0-78-3550001) +63-78-3550002 / 0063-78-3550002 (078-3550002 / 0-78-3550002) +63-78-3550003 / 0063-78-3550003 (078-3550003 / 0-78-3550003) +63-78-3550004 / 0063-78-3550004 (078-3550004 / 0-78-3550004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-3559995 / 0063-78-3559995 (078-3559995 / 0-78-3559995) +63-78-3559996 / 0063-78-3559996 (078-3559996 / 0-78-3559996) +63-78-3559997 / 0063-78-3559997 (078-3559997 / 0-78-3559997) +63-78-3559998 / 0063-78-3559998 (078-3559998 / 0-78-3559998) +63-78-3559999 / 0063-78-3559999 (078-3559999 / 0-78-3559999)