| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated November 2006 | |
| England | Hertfordshire | Large | Terminated January 2006 | |
| England | Hertfordshire | Large | Terminated August 2012 | |
| England | Hertfordshire | Large | Terminated July 1995 | |
| England | Hertfordshire | Large | Terminated November 2011 | |
| England | Hertfordshire | Large | Terminated January 2009 | |
| England | Hertfordshire | Large | Terminated November 2011 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated November 2011 | |
| England | Hertfordshire | Large | Terminated July 2005 | |
| England | Hertfordshire | Large | Terminated January 2006 | |
| England | Hertfordshire | Large | Terminated August 2004 | |
| England | Hertfordshire | Large | Terminated March 2006 | |
| England | Hertfordshire | Large | Terminated October 2000 | |
| England | Hertfordshire | Large | Terminated December 1998 | |
| England | Hertfordshire | Large | Terminated June 1999 | |
| England | Hertfordshire | Large | Terminated October 2001 | |
| England | Hertfordshire | Large | Terminated November 2000 | |
| England | Hertfordshire | Large | Terminated February 2012 | |
| England | Hertfordshire | Large | Terminated April 2003 |