| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated July 2001 | |
| Wales | (pseudo) Wales | Large | Terminated January 2006 | |
| Wales | (pseudo) Wales | Large | Terminated July 2008 | |
| Wales | (pseudo) Wales | Large | Terminated April 2004 | |
| Large | Terminated June 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated November 2013 | |
| Wales | (pseudo) Wales | Large | Terminated July 2015 | |
| Wales | (pseudo) Wales | Large | Terminated June 2012 | |
| Large | Terminated August 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated September 2012 | |
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Wales | (pseudo) Wales | Large | Terminated January 2015 | |
| Wales | (pseudo) Wales | Large | Terminated October 2019 | |
| Wales | (pseudo) Wales | Large | Terminated February 2012 | |
| Wales | (pseudo) Wales | Large | Terminated January 2013 | |
| Wales | (pseudo) Wales | Large | Terminated March 2012 | |
| Wales | (pseudo) Wales | Large | Terminated September 2017 | |
| Wales | (pseudo) Wales | Large | Terminated March 2017 | |
| Wales | (pseudo) Wales | Large | Terminated October 2018 | |
| Wales | (pseudo) Wales | Large | Terminated June 2017 |