| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | ||
| England | Hertfordshire | Small | Terminated August 2002 | |
| England | Hertfordshire | Small | Terminated December 1995 | |
| England | Hertfordshire | Small | Terminated March 2002 | |
| England | Hertfordshire | Small | Terminated July 1995 | |
| England | Hertfordshire | Small | ||
| England | Essex | Small | ||
| England | Essex | Small | ||
| England | Hertfordshire | Small | Terminated December 1995 | |
| England | Hertfordshire | Large | Terminated October 2003 |