For calls to Dortmund please enter the dialling code 0231 and then the number of the person or household you want to reach.
0231 | Phone Code: Classic spelling |
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+49231 | With german country code +49 |
+49(0)231 | With country code +49 and optional 0 |
0049231 | With country code 0049 |
(0231) | Telephone code in brackets |
0231- | With hyphen as separator to the phone number |
0231/ | With slash as a separator to the phone number |