Area Code +63-54-(4780000...4789999) located in Naga City, Camarines Sur (CAS), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 54 Subscriber Number From : 4780000 Subscriber Number To : 4789999 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 : Bayan Telecommunications (BayanTel) Click here to buy Philippines Area Code Database Other Information Language Code : en (English) Country Number : 608 (Philippines) Country Code : PH (Philippines) Region Code : CAS Region Name : Camarines Sur City : Naga City Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 13.6200 Longitude : 123.1900 ‹ previous : +63-54-(4770000...4779999) next › : +63-54-(4950000...4959999) Dialling Instructions For trunk calls: 0 54 4780000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 54 4780000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4780000 ~ 4789999 (Count: 10,000) Example: +63-54-4780000 / 0063-54-4780000 (054-4780000 / 0-54-4780000) +63-54-4780001 / 0063-54-4780001 (054-4780001 / 0-54-4780001) +63-54-4780002 / 0063-54-4780002 (054-4780002 / 0-54-4780002) +63-54-4780003 / 0063-54-4780003 (054-4780003 / 0-54-4780003) +63-54-4780004 / 0063-54-4780004 (054-4780004 / 0-54-4780004) ...+63-54-xxxxxxx / 0063-54-xxxxxxx (054-xxxxxxx / 0-54-xxxxxxx) ...+63-54-4789995 / 0063-54-4789995 (054-4789995 / 0-54-4789995) +63-54-4789996 / 0063-54-4789996 (054-4789996 / 0-54-4789996) +63-54-4789997 / 0063-54-4789997 (054-4789997 / 0-54-4789997) +63-54-4789998 / 0063-54-4789998 (054-4789998 / 0-54-4789998) +63-54-4789999 / 0063-54-4789999 (054-4789999 / 0-54-4789999)