Area Code +63-78-(3750000...3759999) 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 : 3750000 Subscriber Number To : 3759999 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-(3740000...3749999) next › : +63-78-(3760000...3769999) Dialling Instructions For trunk calls: 0 78 3750000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 3750000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3750000 ~ 3759999 (Count: 10,000) Example: +63-78-3750000 / 0063-78-3750000 (078-3750000 / 0-78-3750000) +63-78-3750001 / 0063-78-3750001 (078-3750001 / 0-78-3750001) +63-78-3750002 / 0063-78-3750002 (078-3750002 / 0-78-3750002) +63-78-3750003 / 0063-78-3750003 (078-3750003 / 0-78-3750003) +63-78-3750004 / 0063-78-3750004 (078-3750004 / 0-78-3750004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-3759995 / 0063-78-3759995 (078-3759995 / 0-78-3759995) +63-78-3759996 / 0063-78-3759996 (078-3759996 / 0-78-3759996) +63-78-3759997 / 0063-78-3759997 (078-3759997 / 0-78-3759997) +63-78-3759998 / 0063-78-3759998 (078-3759998 / 0-78-3759998) +63-78-3759999 / 0063-78-3759999 (078-3759999 / 0-78-3759999)