| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | ||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Large | Terminated February 2005 | |||
| Wales | (pseudo) Wales | Large | Terminated September 2010 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated August 2018 | |
| Wales | (pseudo) Wales | Large | Terminated December 1996 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Small |