# AL7

5 sectors, 892 postcodes

- **Part of:** [AL](https://openpostcodes.uk/AL)
- **Local authorities:** Welwyn Hatfield

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [AL7 1](https://openpostcodes.uk/AL7%201) | 216 | Welwyn Hatfield |
| [AL7 2](https://openpostcodes.uk/AL7%202) | 166 | Welwyn Hatfield |
| [AL7 3](https://openpostcodes.uk/AL7%203) | 234 | Welwyn Hatfield |
| [AL7 4](https://openpostcodes.uk/AL7%204) | 239 | Welwyn Hatfield |
| [AL7 9](https://openpostcodes.uk/AL7%209) | 37 | Welwyn Hatfield |