| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | Terminated December 1999 | |
| England | Hertfordshire | Large | Terminated March 2012 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated March 2001 | |
| England | Hertfordshire | Large | Terminated May 2010 | |
| England | Hertfordshire | Large | Terminated October 2001 | |
| England | Hertfordshire | Large | Terminated July 2002 | |
| England | Hertfordshire | Large | Terminated July 2005 | |
| England | Hertfordshire | Large | Terminated August 2010 | |
| England | Hertfordshire | Large | Terminated August 2004 | |
| England | Hertfordshire | Large | Terminated July 2001 | |
| England | Hertfordshire | Large | Terminated April 2001 | |
| England | Hertfordshire | Large | Terminated November 2018 | |
| England | Hertfordshire | Large | Terminated September 2000 |