Sectors in CO2
| Sector | Main place | Postcodes |
|---|---|---|
| CO2 0 | Berechurch | 143 |
| CO2 7 | Colchester | 262 |
| CO2 8 | Colchester | 311 |
| CO2 9 | Colchester | 228 |
Places covered by CO2
- Colchester Colchester · 690
- Berechurch Colchester · 155
- Layer-de-la-Haye Colchester · 39
- Birch Green Colchester · 16
- Malting Green Colchester · 10
- Layer Breton Colchester · 4
- Birch Colchester · 3
- Hardy's Green Colchester · 3
- Heckfordbridge Colchester · 1