| Place | Post Code |
|---|---|
| Oku Obom, Ibiono II | 520116 |
| Osuk Ntan, Ibiono II | 520117 |
| Udioho Ntan Ekere, Ibiono II | 520117 |
| Ukim-Idoro, Ibiono II | 520118 |
| Urua Abasi Umoh, Ibiono II | 520118 |
| Use Ikot-Amama, Ibiono II | 520118 |
| Use Ikot Odiong, Ibiono II | 520116 |
| Use Ndon, Ibiono II | 520116 |
| Usuk Ibiaku, Ibiono II | 520116 |
| Usuk Ntan Ekere, Ibiono II | 520117 |
| Utong-Idoro, Ibiono II | 520118 |
| All postal codes in Ibeno | |
|---|---|
| Ibeno Clan, Ibeno | |
| Ibiono I, Ibeno | |
| Ibiono II, Ibeno | |
| Ibiono III, Ibeno | |
| Ibiono III Central, Ibeno | |
| Ibiono (Southern), Ibeno | |
| Ikpanya, Ibeno | |