| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated July 2007 | |
| Wales | (pseudo) Wales | Large | Terminated July 2011 | |
| Wales | (pseudo) Wales | Large | Terminated February 2009 | |
| Wales | (pseudo) Wales | Large | Terminated July 2007 | |
| Wales | (pseudo) Wales | Large | Terminated February 2007 | |
| Wales | (pseudo) Wales | Large | Terminated February 2007 | |
| Wales | (pseudo) Wales | Large | Terminated August 2007 | |
| Wales | (pseudo) Wales | Large | Terminated August 2008 | |
| Wales | (pseudo) Wales | Large | Terminated August 2008 | |
| Wales | (pseudo) Wales | Large | Terminated September 2018 | |
| Wales | (pseudo) Wales | Large | Terminated October 2007 | |
| Wales | (pseudo) Wales | Large | Terminated August 2008 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated October 2008 | |
| Wales | (pseudo) Wales | Large | Terminated October 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2010 | |
| Wales | (pseudo) Wales | Large | Terminated December 2010 | |
| Wales | (pseudo) Wales | Large | Terminated June 2008 |