+63-77-(7700000...7709999): Laoag City, Ilocos Norte (ILN) Read more about +63-77-(7700000...7709999)
+63-77-(7710000...7719999): Laoag City, Ilocos Norte (ILN) Read more about +63-77-(7710000...7719999)
+63-77-(7720000...7729999): Laoag City, Ilocos Norte (ILN) Read more about +63-77-(7720000...7729999)