Sectors in SO18
| Sector | Main place | Postcodes |
|---|---|---|
| SO18 1 | Southampton | 193 |
| SO18 2 | Southampton | 237 |
| SO18 3 | West End | 83 |
| SO18 4 | Southampton | 109 |
| SO18 5 | Southampton | 195 |
| SO18 6 | Southampton | 75 |
| SO18 9 | Southampton | 48 |
Places covered by SO18
- Southampton Southampton · 846
- West End Eastleigh · 81