Sectors in NN3
| Sector | Main place | Postcodes |
|---|---|---|
| NN3 0 | Northampton | 7 |
| NN3 2 | Northampton | 180 |
| NN3 3 | Northampton | 200 |
| NN3 5 | Northampton | 134 |
| NN3 6 | Northampton | 186 |
| NN3 7 | Moulton | 200 |
| NN3 8 | Northampton | 234 |
| NN3 9 | Northampton | 174 |
Places covered by NN3
- Northampton West Northamptonshire · 1,165
- Moulton West Northamptonshire · 137