For calls to Hohentengen am Hochrhein please enter the dialling code 07742 and then the number of the person or household you want to reach.
| 07742 | Phone Code: Classic spelling |
|---|---|
| +497742 | With german country code +49 |
| +49(0)7742 | With country code +49 and optional 0 |
| 00497742 | With country code 0049 |
| (07742) | Telephone code in brackets |
| 07742- | With hyphen as separator to the phone number |
| 07742/ | With slash as a separator to the phone number |