| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Large | Terminated January 1995 | |
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Large | Terminated May 1994 | |
| England | Hertfordshire | Large | Terminated December 1994 | |
| England | Essex | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Essex | Large | Terminated August 1997 | |
| England | Essex | Large | Terminated January 2005 | |
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Essex | Small |