Area Code +63-77-(7423900...7423999) located in Santa Lucia, Ilocos Sur (ILS), more detail is as below. Place International Dialing Code : 63 International Prefix : 00 National Prefix : 0 National Destination Code : 77 Subscriber Number From : 7423900 Subscriber Number To : 7423999 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 : ILS Region Name : Ilocos Sur City : Santa Lucia Timezone : Asia/Manila Coordinated Universal Time : +08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 17.1200 Longitude : 120.4500 ‹ previous : +63-77-(7423000...7423999) next › : +63-77-(7426700...7426799) Dialling Instructions For trunk calls: 0 77 7423900 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 63 77 7423900 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 7423900 ~ 7423999 (Count: 100) Example: +63-77-7423900 / 0063-77-7423900 (077-7423900 / 0-77-7423900) +63-77-7423901 / 0063-77-7423901 (077-7423901 / 0-77-7423901) +63-77-7423902 / 0063-77-7423902 (077-7423902 / 0-77-7423902) +63-77-7423903 / 0063-77-7423903 (077-7423903 / 0-77-7423903) +63-77-7423904 / 0063-77-7423904 (077-7423904 / 0-77-7423904) ...+63-77-xxxxxxx / 0063-77-xxxxxxx (077-xxxxxxx / 0-77-xxxxxxx) ...+63-77-7423995 / 0063-77-7423995 (077-7423995 / 0-77-7423995) +63-77-7423996 / 0063-77-7423996 (077-7423996 / 0-77-7423996) +63-77-7423997 / 0063-77-7423997 (077-7423997 / 0-77-7423997) +63-77-7423998 / 0063-77-7423998 (077-7423998 / 0-77-7423998) +63-77-7423999 / 0063-77-7423999 (077-7423999 / 0-77-7423999)