Since the introduction of Mobile number portability in 2002, the prefix (here 0171) is no longer a indicator for the mobile radio network.
Originally, the phone code 0171 was assigned to Telekom. Currently, however, this can be used or be active in a different german network.
The same applies to the provider. Originally to Telekom assigned can this number theoretically be in use at every other german mobile provider.
| 0171 | Phone Code: Classic spelling |
|---|---|
| +49171 | With german country code +49 |
| +49(0)171 | With country code +49 and optional 0 |
| 0049171 | With country code 0049 |
| (0171) | Telephone code in brackets |
| 0171- | With hyphen as separator to the phone number |
| 0171/ | With slash as a separator to the phone number |
To call a mobile number with the prefix 0171 from abroad, you must dial the area code for Germany (+49 and 0049) at the front. In addition, you have to remove the 0 from mobile phone code. The final phone number then has the following form: +49171...