For calls to Clausthal-Zellerfeld please enter the dialling code 05323 and then the number of the person or household you want to reach.
| 05323 | Phone Code: Classic spelling |
|---|---|
| +495323 | With german country code +49 |
| +49(0)5323 | With country code +49 and optional 0 |
| 00495323 | With country code 0049 |
| (05323) | Telephone code in brackets |
| 05323- | With hyphen as separator to the phone number |
| 05323/ | With slash as a separator to the phone number |