For calls to Merzenich, Kreis Düren please enter the dialling code 02421 and then the number of the person or household you want to reach.
| 02421 | Phone Code: Classic spelling |
|---|---|
| +492421 | With german country code +49 |
| +49(0)2421 | With country code +49 and optional 0 |
| 00492421 | With country code 0049 |
| (02421) | Telephone code in brackets |
| 02421- | With hyphen as separator to the phone number |
| 02421/ | With slash as a separator to the phone number |