| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated October 2018 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | Terminated September 2012 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated December 1994 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small |