| Place | Postal Code |
|---|---|
| Akaezi, Awkuzu | 433103 |
| Dusogu, Awkuzu | 433103 |
| Ezinkwo, Awkuzu | 433103 |
| Igbu, Awkuzu | 433103 |
| Iru-Anika, Awkuzu | 433103 |
| Otoko, Awkuzu | 433103 |
| Ozu, Awkuzu | 433103 |
| Umudioka, Awkuzu | 433103 |
| Umuobi, Awkuzu | 433103 |
| Postal Codes in Oyi | |
|---|---|
| Agbunike, Oyi | |
| Awkuzu, Oyi | |
| Nkwelle, Oyi | |
| Nteje, Oyi | |
| Umuneba, Oyi | |
| Umunya, Oyi | |