231 Area Code
Dortmund · Germany
Country code +49 · ISO DE
Example 231 Number
A sample number from this area code, formatted three ways.
| National | International | E.164 |
|---|---|---|
| 0231 23456 | +49 231 23456 | +4923123456 |
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Cities and Regions
Locations served by the 231 area code, according to Google's libphonenumber.
- · Dortmund
How to Dial Germany Numbers
From abroad
Dial +49 followed by the national number, dropping any leading 0.
Within Germany
Dial 0 before the local number to make a domestic call.
Dialing out of Germany
Dial 00 followed by the destination country code and number.
Nearby Germany Area Codes
Frequently Asked Questions
Where is the 231 area code?
└ The 231 area code covers Dortmund in Germany.
How do I dial a 231 number?
└ From abroad, dial +49 231 followed by the local number. Within Germany, dial 0231 before the local number.