| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Elugwu, Ato-Werem | 472116 |
| Postal/ZIP Codes in Omuchienta, Ato-Werem | 472116 |
| Postal/ZIP Codes in Umuezea, Ato-Werem | 472116 |
| Postal/ZIP Codes in Umuezina, Ato-Werem | 472116 |
| Postal/ZIP Codes in Umulemaku, Ato-Werem | 472116 |
| Postal/ZIP Codes in Umuopi, Ato-Werem | 472116 |