The area code (phone code) 04123 is assigned to 9 locations in Germany. Mainly you reach landlines in Barmstedt (Schleswig-Holstein).
| Dialling Code | City |
|---|---|
| 04123 | Barmstedt |
| 04123 | Hemdingen |
| 04123 | Bokholt-Hanredder |
| | |
| 04123 | Lutzhorn |
| 04123 | Heede bei Barmstedt |
| 04123 | Bevern, Holstein |
| 04123 | Langeln, Kreis Pinneberg |
| 04123 | Groß Offenseth-Aspern |
| 04123 | Bullenkuhlen |
Note for calls from abroad: In addition to the German country code (+49 or 0049) you can omit the foregoing zero of the dialling code for Barmstedt. So you can dial +494123... and add the number of the phone line you want to reach.