| 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 May 2010 | |
| Wales | (pseudo) Wales | Large | Terminated May 2021 | |
| Wales | (pseudo) Wales | Large | Terminated October 2006 | |
| Wales | (pseudo) Wales | Large | Terminated April 2003 | |
| Wales | (pseudo) Wales | Large | Terminated June 2005 | |
| Wales | (pseudo) Wales | Large | Terminated May 2011 | |
| Wales | (pseudo) Wales | Large | Terminated October 2006 | |
| Wales | (pseudo) Wales | Large |