| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated December 1983 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated July 1995 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 | |
| Wales | (pseudo) Wales | Small | Terminated June 1999 |