| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated September 2003 | |
| Large | Terminated March 2010 | |||
| Wales | (pseudo) Wales | Large | Terminated November 2015 | |
| Large | Terminated April 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Large | Terminated September 2010 | |||
| Large | Terminated October 2010 | |||
| Wales | (pseudo) Wales | Large | Terminated February 2017 | |
| Large | Terminated September 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated February 2019 | |
| Wales | (pseudo) Wales | Large | Terminated October 2012 | |
| Wales | (pseudo) Wales | Large | Terminated July 2021 | |
| Wales | (pseudo) Wales | Large | Terminated November 2011 | |
| Wales | (pseudo) Wales | Large | Terminated January 2014 | |
| Wales | (pseudo) Wales | Large | Terminated November 2014 | |
| Wales | (pseudo) Wales | Large | Terminated March 2014 | |
| Wales | (pseudo) Wales | Large | Terminated December 2011 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated October 2012 | |
| Wales | (pseudo) Wales | Large | Terminated June 2014 |