Area Code +63-78-(3120000...3129999) located in Cabarroguis, Quirino (QUI), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 78 Subscriber Number From : 3120000 Subscriber Number To : 3129999 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 : QUI Region Name : Quirino City : Cabarroguis Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 16.4200 Longitude : 121.5100 ‹ previous : +63-78-(3070000...3079999) next › : +63-78-(3140000...3149999) Dialling Instructions For trunk calls: 0 78 3120000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 78 3120000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3120000 ~ 3129999 (Count: 10,000) Example: +63-78-3120000 / 0063-78-3120000 (078-3120000 / 0-78-3120000) +63-78-3120001 / 0063-78-3120001 (078-3120001 / 0-78-3120001) +63-78-3120002 / 0063-78-3120002 (078-3120002 / 0-78-3120002) +63-78-3120003 / 0063-78-3120003 (078-3120003 / 0-78-3120003) +63-78-3120004 / 0063-78-3120004 (078-3120004 / 0-78-3120004) ...+63-78-xxxxxxx / 0063-78-xxxxxxx (078-xxxxxxx / 0-78-xxxxxxx) ...+63-78-3129995 / 0063-78-3129995 (078-3129995 / 0-78-3129995) +63-78-3129996 / 0063-78-3129996 (078-3129996 / 0-78-3129996) +63-78-3129997 / 0063-78-3129997 (078-3129997 / 0-78-3129997) +63-78-3129998 / 0063-78-3129998 (078-3129998 / 0-78-3129998) +63-78-3129999 / 0063-78-3129999 (078-3129999 / 0-78-3129999)