| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated September 2011 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated May 2021 | |
| England | Hertfordshire | Large | Terminated October 2011 | |
| England | Hertfordshire | Large | Terminated March 2016 | |
| England | Hertfordshire | Large | Terminated October 2012 | |
| England | Hertfordshire | Large | Terminated December 2020 | |
| England | Hertfordshire | Large | Terminated February 2012 | |
| England | Hertfordshire | Large | Terminated February 2012 | |
| England | Hertfordshire | Large | Terminated April 2016 | |
| England | Hertfordshire | Large | Terminated May 2013 | |
| England | Hertfordshire | Large | Terminated May 2021 | |
| England | Hertfordshire | Large | Terminated May 2021 | |
| England | Hertfordshire | Large | Terminated June 2012 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated April 2020 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated May 2021 |