| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Aba Isu, Isu | 442103 |
| Postal/ZIP Codes in Amachi, Isu | 442103 |
| Postal/ZIP Codes in Amakarama, Isu | 442103 |
| Postal/ZIP Codes in Amukabi, Isu | 442103 |
| Postal/ZIP Codes in Iheosu, Isu | 442103 |
| Postal/ZIP Codes in Obieze, Isu | 442103 |
| Postal/ZIP Codes in Obomime, Isu | 442103 |