| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated November 2016 | |
| Wales | (pseudo) Wales | Large | Terminated May 2006 | |
| Wales | (pseudo) Wales | Large | Terminated January 2007 | |
| Wales | (pseudo) Wales | Large | Terminated November 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2015 | |
| Wales | (pseudo) Wales | Large | Terminated January 2007 | |
| Wales | (pseudo) Wales | Large | Terminated January 2010 | |
| Wales | (pseudo) Wales | Large | Terminated July 2007 | |
| Wales | (pseudo) Wales | Large | Terminated January 2007 | |
| Wales | (pseudo) Wales | Large | Terminated February 2010 | |
| Wales | (pseudo) Wales | Large | Terminated February 2016 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Wales | (pseudo) Wales | Large | Terminated May 2010 | |
| Wales | (pseudo) Wales | Large | Terminated October 2006 | |
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated May 2008 | |
| Wales | (pseudo) Wales | Large | Terminated May 2009 |