0231 area code — Dortmund
Phone numbers in Dortmund, Germany use the area code 0231. Numbers are written internationally as +49 231.
* Germany spans more than one time zone; the clock shows its primary zone.
How to call Dortmund
- From abroad
- +49 231 XXX XXXX
- Within Germany
- 0231 XXX XXXX
- Country calling code
- +49
About the 0231 area code
Locally the code appears as 0231; from outside Germany you replace the leading 0 with +49 231.
Area codes like 0231 tie a phone number to a place — useful for knowing where a call or message originates, and for signing up to services that expect a local Germany number. To actually receive an SMS on a Germany number, a temporary or virtual line does the job without exposing your own SIM.
Frequently asked questions
What area code is Dortmund?
Dortmund uses the area code 0231, written internationally as +49 231.
How do I call Dortmund from another country?
Dial your international access code, then +49 231, then the local number — dropping the national leading 0.
What time is it in Dortmund?
Dortmund is in the Europe/Berlin time zone; the live clock above shows the current local time.
Is 0231 a mobile or a landline code?
0231 is a geographic (landline) area code for Dortmund. Mobile numbers in Germany use their own separate prefixes.