| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | Terminated August 2007 | |
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | Terminated March 2021 | |
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small | ||
| Channel Islands | (pseudo) Channel Islands | Small |