+47-31-(100000...109999): All locations, Buskerud fylke (06) Read more about +47-31-(100000...109999)
+47-33-(600000...609999): All locations, Vestfold fylke (07) Read more about +47-33-(600000...609999)
+47-35-(200000...209999): All locations, Telemark fylke (08) Read more about +47-35-(200000...209999)
+47-37-(800000...809999): All locations, Aust-Agder fylke (09) Read more about +47-37-(800000...809999)
+47-38-(500000...509999): All locations, Vest-Agder fylke (10) Read more about +47-38-(500000...509999)