| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated December 1999 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | Terminated September 2000 | |
| England | Hertfordshire | Large | Terminated August 2011 | |
| England | Hertfordshire | Large | Terminated May 2005 | |
| England | Hertfordshire | Large | Terminated December 2008 | |
| England | Hertfordshire | Large | Terminated August 2001 | |
| England | Hertfordshire | Large | Terminated September 2008 | |
| England | Hertfordshire | Large | Terminated February 2004 | |
| England | Hertfordshire | Large | Terminated September 2008 | |
| England | Hertfordshire | Large | Terminated February 2009 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated January 2003 | |
| England | Hertfordshire | Large | Terminated March 2002 | |
| England | Hertfordshire | Large | Terminated September 2012 | |
| England | Hertfordshire | Large | Terminated May 2004 | |
| England | Hertfordshire | Large | Terminated December 2008 | |
| England | Hertfordshire | Large | Terminated April 2009 | |
| England | Hertfordshire | Large | Terminated November 2011 | |
| England | Hertfordshire | Large | Terminated December 2008 |