| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| 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 | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | Terminated September 2000 | |
| Wales | (pseudo) Wales | Large | Terminated October 2007 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated September 2002 | |
| Wales | (pseudo) Wales | Large | Terminated February 2006 |