+63-83-(3710000...3719999): Koronadal City, South Cotabato (SCO) Read more about +63-83-(3710000...3719999)
+63-83-(3720000...3729999): Koronadal City, South Cotabato (SCO) Read more about +63-83-(3720000...3729999)
+63-83-(3800000...3809999): General Santos, South Cotabato (SCO) Read more about +63-83-(3800000...3809999)
+63-83-(3810000...3819999): Koronadal City, South Cotabato (SCO) Read more about +63-83-(3810000...3819999)
+63-83-(3820000...3829999): Polomolok, South Cotabato (SCO) Read more about +63-83-(3820000...3829999)
+63-83-(5000000...5009999): Polomolok, South Cotabato (SCO) Read more about +63-83-(5000000...5009999)
+63-83-(5010000...5014999): Polomolok, South Cotabato (SCO) Read more about +63-83-(5010000...5014999)