| Place | Postal Code |
|---|---|
| Egwedu, Atta | 474128 |
| Eziuba, Atta | 474128 |
| Isiekwe, Atta | 474128 |
| Ohima, Atta | 474128 |
| Ubokoro, Atta | 474128 |
| Ubudom, Atta | 474128 |
| Ugbele, Atta | 474128 |
| Umuerim, Atta | 474128 |
| Umumanu, Atta | 474128 |
| Umunam, Atta | 474128 |
| Umuoke, Atta | 474128 |
| Postal Codes in Njaba | |
|---|---|
| Amucha, Njaba | |
| Atta, Njaba | |
| Okwudor, Njaba | |
| Umuaka, Njaba | |