| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | Terminated February 2006 | |
| Wales | (pseudo) Wales | Large | Terminated December 1999 | |
| Wales | (pseudo) Wales | Large | Terminated September 2000 | |
| Wales | (pseudo) Wales | Large | Terminated March 2001 | |
| Wales | (pseudo) Wales | Large | Terminated December 2001 | |
| Wales | (pseudo) Wales | Large | Terminated May 2009 | |
| Wales | (pseudo) Wales | Large | Terminated August 2011 | |
| Wales | (pseudo) Wales | Large | Terminated May 2008 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | ||
| Large | Terminated April 2012 | |||
| Large | Terminated May 2010 | |||
| Large | Terminated October 2010 | |||
| Wales | (pseudo) Wales | Large | Terminated October 2016 | |
| Large | Terminated December 2010 | |||
| Large | Terminated May 2011 | |||
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large |