| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated April 2017 | |
| England | Hertfordshire | Large | Terminated May 2011 | |
| England | Hertfordshire | Large | Terminated January 2015 | |
| England | Hertfordshire | Large | Terminated August 2009 | |
| England | Hertfordshire | Large | Terminated May 2012 | |
| England | Hertfordshire | Large | Terminated May 2009 | |
| England | Hertfordshire | Large | Terminated December 2010 | |
| England | Hertfordshire | Large | Terminated July 2007 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated January 2018 | |
| England | Hertfordshire | Large | Terminated August 2004 | |
| England | Hertfordshire | Large | Terminated April 2021 | |
| England | Hertfordshire | Large | Terminated February 2007 | |
| England | Hertfordshire | Large | Terminated July 2007 |