Crown dependencies
The Crown dependencies (which are not part of the United Kingdom) did not introduce postcodes until later, but use a similar coding scheme. They are separate postal authorities. The Channel Islands and the Isle of Man established their own postal administrations separate from the UK in 1969. Despite this, they adopted the UK-format postcodes in 1993–94.
| Postcode area | Postcode area name |
|---|---|
| GY | Guernsey |
| JE | Jersey |
| IM | Isle of Man |
See also:
- Crown dependencies
- British Overseas Territories
- British Forces Post Offices (BFPO)
- Non-geographic postcodes