| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated July 1995 | |
| Wales | (pseudo) Wales | Large | Terminated June 2008 | |
| Large | Terminated August 2009 | |||
| Wales | (pseudo) Wales | Large | ||
| Large | Terminated August 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated June 2012 | |
| Wales | (pseudo) Wales | Large | Terminated April 2017 | |
| Wales | (pseudo) Wales | Large | Terminated October 2013 | |
| Large | Terminated May 2009 | |||
| Wales | (pseudo) Wales | Large | Terminated January 2014 | |
| Large | Terminated February 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Wales | (pseudo) Wales | Large | Terminated May 2013 | |
| Large | Terminated August 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated January 2013 | |
| Large | Terminated May 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated September 2011 | |
| Large | Terminated July 2011 | |||
| Wales | (pseudo) Wales | Large | Terminated January 2014 | |
| Wales | (pseudo) Wales | Large |