Germany
☎️ Landline / Geographic
Area Code 231 – Dortmund
The phone area code for Dortmund is 231 (international format +49231). Browse local exchange codes (NXX) and carrier assignments below.
Current Local Time
07:39:43
Europe/Berlin • UTC +02:00
Full Dialing Format
+49231
Population
603,462
👥
Admin Region
North Rhine-Westphalia
🗺️
Elevation
95m
🏔️
GPS Coordinates
51.5125, 7.4770
📍
📞 Exchange Codes (NXX) for Area Code 231
Select a central office code to view local carrier data and detailed information
(231)
940
(231)
941
(231)
942
(231)
943
(231)
944
(231)
945
(231)
946
(231)
947
(231)
948
(231)
949
(231)
950
(231)
951
(231)
952
(231)
953
(231)
954
(231)
955
(231)
956
(231)
957
(231)
958
(231)
959
(231)
960
(231)
961
(231)
962
(231)
963
(231)
964
(231)
965
(231)
966
(231)
967
(231)
968
(231)
969
(231)
970
(231)
971
(231)
972
(231)
973
(231)
974
(231)
975
(231)
976
(231)
977
(231)
978
(231)
979