| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated April 2012 | |
| Wales | (pseudo) Wales | Large | Terminated May 2007 | |
| Wales | (pseudo) Wales | Large | Terminated May 2011 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated September 2006 | |
| Wales | (pseudo) Wales | Large | Terminated August 2009 | |
| Wales | (pseudo) Wales | Large | Terminated August 2006 | |
| Wales | (pseudo) Wales | Large | Terminated January 2009 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated September 2007 | |
| Wales | (pseudo) Wales | Large | Terminated November 2007 | |
| Wales | (pseudo) Wales | Large | Terminated January 2008 | |
| Wales | (pseudo) Wales | Large | Terminated January 2008 | |
| Wales | (pseudo) Wales | Large | Terminated April 2015 | |
| Wales | (pseudo) Wales | Large | Terminated May 2011 | |
| Wales | (pseudo) Wales | Large | Terminated May 2008 | |
| Wales | (pseudo) Wales | Large | Terminated June 2008 | |
| Wales | (pseudo) Wales | Large | Terminated June 2009 | |
| Wales | (pseudo) Wales | Large | Terminated October 2008 |