All postcodes in SO23 3
| Postcode | Place | Type |
|---|---|---|
| SO23 3WP | Winchester | large user |
| SO23 3WQ | Winchester | large user |
| SO23 3WR | Winchester | large user |
| SO23 3WS | Winchester | large user |
| SO23 3WT | — | large user |
| SO23 3WU | — | large user |
| SO23 3WW | — | large user |
| SO23 3ZZ | — | large user |
Places in sector SO23 3
- Winchester 64