Sectors in CH49
| Sector | Main place | Postcodes |
|---|---|---|
| CH49 0 | Birkenhead | 55 |
| CH49 1 | Greasby | 47 |
| CH49 2 | Greasby | 82 |
| CH49 3 | Greasby | 87 |
| CH49 4 | Birkenhead | 116 |
| CH49 5 | Birkenhead | 50 |
| CH49 6 | Birkenhead | 85 |
| CH49 7 | Birkenhead | 47 |
| CH49 8 | Birkenhead | 50 |
| CH49 9 | Birkenhead | 54 |
Places covered by CH49
- Birkenhead Wirral · 453
- Greasby Wirral · 203
- Wallasey Wirral · 8
- Heswall Wirral · 1