| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated August 2011 | |
| Wales | (pseudo) Wales | Large | Terminated September 2006 | |
| Wales | (pseudo) Wales | Large | Terminated November 2003 | |
| Wales | (pseudo) Wales | Large | Terminated December 2002 | |
| Wales | (pseudo) Wales | Large | Terminated December 1997 | |
| Wales | (pseudo) Wales | Large | Terminated June 1999 | |
| Wales | (pseudo) Wales | Large | Terminated February 2013 | |
| Wales | (pseudo) Wales | Large | Terminated July 1995 | |
| Wales | (pseudo) Wales | Large | Terminated March 2002 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | Terminated December 1999 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Large | Terminated July 2007 | |
| Wales | (pseudo) Wales | Large | Terminated February 2006 | |
| Wales | (pseudo) Wales | Large | Terminated February 2004 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small |