| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated March 2002 | |
| England | Hertfordshire | Large | Terminated March 2002 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated April 2004 | |
| England | Hertfordshire | Large | Terminated April 2013 | |
| England | Hertfordshire | Large | Terminated May 2011 | |
| England | Hertfordshire | Large | Terminated September 2010 | |
| England | Hertfordshire | Large | Terminated November 2000 | |
| England | Hertfordshire | Large | Terminated March 2002 | |
| England | Hertfordshire | Large | Terminated February 2006 | |
| England | Hertfordshire | Large | Terminated July 2007 | |
| England | Hertfordshire | Large | Terminated April 2006 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated April 2014 | |
| England | Hertfordshire | Small |