| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated September 2000 | |
| England | Hertfordshire | Large | Terminated September 2003 | |
| England | Hertfordshire | Large | Terminated April 2007 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | ||
| England | Hertfordshire | Large | Terminated June 2008 | |
| England | Hertfordshire | Large | Terminated June 2000 | |
| England | Hertfordshire | Large | Terminated March 2002 |