| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated July 2008 | |
| England | Hertfordshire | Large | Terminated February 2012 | |
| England | Hertfordshire | Large | Terminated May 2016 | |
| England | Hertfordshire | Large | Terminated March 2007 | |
| England | Hertfordshire | Large | Terminated September 2011 | |
| England | Hertfordshire | Large | Terminated June 2008 | |
| England | Hertfordshire | Large | Terminated August 2009 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated October 2017 | |
| England | Hertfordshire | Large | Terminated August 2011 | |
| England | Hertfordshire | Large | Terminated October 2005 | |
| England | Hertfordshire | Large | Terminated April 2001 | |
| England | Hertfordshire | Large | Terminated September 2000 | |
| England | Hertfordshire | Large | Terminated August 2009 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated May 2006 | |
| England | Hertfordshire | Large | Terminated May 2006 | |
| England | Hertfordshire | Large | Terminated November 2004 | |
| England | Hertfordshire | Large | Terminated December 2010 | |
| England | Hertfordshire | Large | Terminated September 2003 |