| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Amachi, Ama-Asa | 451102 |
| Postal/ZIP Codes in Aro-Achara, Ama-Asa | 451102 |
| Postal/ZIP Codes in Eziam, Ama-Asa | 451102 |
| Postal/ZIP Codes in Ohuhu, Ama-Asa | 451102 |
| Postal/ZIP Codes in Umuakwu, Ama-Asa | 451102 |
| Postal/ZIP Codes in Umuosinyike, Ama-Asa | 451102 |
| Postal/ZIP Codes in Usaka-Umuofo, Ama-Asa | 451102 |