| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated August 2010 | |
| Wales | (pseudo) Wales | Large | Terminated April 2006 | |
| Wales | (pseudo) Wales | Large | Terminated April 2007 | |
| Wales | (pseudo) Wales | Large | Terminated April 2013 | |
| Wales | (pseudo) Wales | Large | Terminated September 2006 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated October 2011 | |
| Wales | (pseudo) Wales | Large | Terminated December 2008 | |
| Wales | (pseudo) Wales | Large | Terminated December 2011 | |
| Wales | (pseudo) Wales | Large | Terminated November 2012 | |
| Wales | (pseudo) Wales | Large | Terminated February 2007 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated May 2009 | |
| Wales | (pseudo) Wales | Large | Terminated August 2009 | |
| Wales | (pseudo) Wales | Large | Terminated July 2008 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2010 | |
| Wales | (pseudo) Wales | Large | Terminated January 2008 | |
| Wales | (pseudo) Wales | Large | Terminated January 2008 |