| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | Terminated June 1996 | |
| England | (pseudo) England (UA/MD/LB) | Large | ||
| Wales | (pseudo) Wales | Large | Terminated October 2000 | |
| Wales | (pseudo) Wales | Large | Terminated June 2000 | |
| England | (pseudo) England (UA/MD/LB) | Large | Terminated January 2004 | |
| England | (pseudo) England (UA/MD/LB) | Large | Terminated August 2013 | |
| England | (pseudo) England (UA/MD/LB) | Large | Terminated May 2006 | |
| England | (pseudo) England (UA/MD/LB) | Large | Terminated November 2007 | |
| England | (pseudo) England (UA/MD/LB) | Large | Terminated October 2007 | |
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small | ||
| Wales | (pseudo) Wales | Small |