For calls to Obertrebra please enter the dialling code 03644 and then the number of the person or household you want to reach.
| 03644 | Phone Code: Classic spelling |
|---|---|
| +493644 | With german country code +49 |
| +49(0)3644 | With country code +49 and optional 0 |
| 00493644 | With country code 0049 |
| (03644) | Telephone code in brackets |
| 03644- | With hyphen as separator to the phone number |
| 03644/ | With slash as a separator to the phone number |