| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated December 1990 | |
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated December 1994 | |
| England | Hertfordshire | Large | Terminated December 1996 | |
| England | Hertfordshire | Small | ||
| England | Essex | Large | Terminated September 2008 | |
| England | Hertfordshire | Large | Terminated July 2005 | |
| England | Essex | Large | Terminated September 2008 | |
| England | Essex | Large | Terminated May 2011 | |
| England | Essex | Large | Terminated April 2013 | |
| England | Essex | Large | Terminated March 2007 | |
| England | Essex | Large | Terminated March 2006 | |
| England | Essex | Large | Terminated March 2009 | |
| England | Essex | Large | Terminated November 2018 | |
| England | Essex | Large | Terminated March 2006 | |
| England | Hertfordshire | Large | Terminated May 2005 | |
| England | Hertfordshire | Large | Terminated January 2005 | |
| England | Essex | Large | Terminated June 2011 | |
| England | Hertfordshire | Large | Terminated July 2005 |