| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated November 2019 | |
| Wales | (pseudo) Wales | Large | Terminated December 2001 | |
| Wales | (pseudo) Wales | Large | Terminated December 2012 | |
| Wales | (pseudo) Wales | Large | Terminated March 2001 | |
| Wales | (pseudo) Wales | Large | Terminated September 2003 | |
| Wales | (pseudo) Wales | Large | Terminated December 2001 | |
| Wales | (pseudo) Wales | Large | Terminated December 2001 | |
| Wales | (pseudo) Wales | Large | Terminated July 2005 | |
| Wales | (pseudo) Wales | Large | Terminated January 2004 | |
| Large | Terminated December 2008 | |||
| Wales | (pseudo) Wales | Large | Terminated June 2012 | |
| Large | Terminated July 2011 | |||
| Large | Terminated July 2011 | |||
| Large | Terminated July 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated July 2018 | |
| Large | Terminated January 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated September 2014 | |
| Large | Terminated December 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated March 2014 | |
| Wales | (pseudo) Wales | Large | Terminated February 2012 |