The area code (phone code) 07721 is assigned to 4 locations in Germany. Mainly you reach landlines in Villingen-Schwenningen (Baden-Württemberg).
| Dialling Code | City |
|---|---|
| 07721 | Villingen-Schwenningen |
| 07721 | Brigachtal |
| 07721 | Mönchweiler |
| 07721 | Unterkirnach |
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 Villingen-Schwenningen. So you can dial +497721... and add the number of the phone line you want to reach.