| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Wales | (pseudo) Wales | Large | Terminated April 2003 | |
| Wales | (pseudo) Wales | Large | Terminated September 2005 | |
| Wales | (pseudo) Wales | Large | Terminated May 2005 | |
| Wales | (pseudo) Wales | Large | Terminated June 2015 | |
| Wales | (pseudo) Wales | Large | Terminated December 2018 | |
| Large | Terminated May 2005 | |||
| Wales | (pseudo) Wales | Large | Terminated December 2010 | |
| Wales | (pseudo) Wales | Large | Terminated January 2007 | |
| Wales | (pseudo) Wales | Large | Terminated April 2009 | |
| Wales | (pseudo) Wales | Large | Terminated May 2007 | |
| Wales | (pseudo) Wales | Large | Terminated March 2008 | |
| Wales | (pseudo) Wales | Large | Terminated April 2013 | |
| Wales | (pseudo) Wales | Large | Terminated January 2013 | |
| Wales | (pseudo) Wales | Large | Terminated March 2013 | |
| Wales | (pseudo) Wales | Large | Terminated September 2011 | |
| Wales | (pseudo) Wales | Large | Terminated May 2011 | |
| Wales | (pseudo) Wales | Large | Terminated August 2015 | |
| Large | Terminated April 2005 |