# BT23

7 sectors, 1,499 postcodes

- **Part of:** [BT](https://openpostcodes.uk/BT)
- **Local authorities:** Ards and North Down, Lisburn and Castlereagh, Newry, Mourne and Down

## Sectors

| Sector | Postcodes | Local authority |
|---|---|---|
| [BT23 2](https://openpostcodes.uk/BT23%202) | 3 | — |
| [BT23 4](https://openpostcodes.uk/BT23%204) | 344 | Ards and North Down |
| [BT23 5](https://openpostcodes.uk/BT23%205) | 375 | Ards and North Down |
| [BT23 6](https://openpostcodes.uk/BT23%206) | 273 | Ards and North Down |
| [BT23 7](https://openpostcodes.uk/BT23%207) | 234 | Ards and North Down |
| [BT23 8](https://openpostcodes.uk/BT23%208) | 236 | Ards and North Down |
| [BT23 9](https://openpostcodes.uk/BT23%209) | 34 | — |