Nsit Atai is a Local Government Area (LGA) in Akwa Ibom State, Nigeria. The postal codes in Nsit Atai are primarily 521108.
Here are the postal codes of the streets and districts in Nsit Atai:
| Location | Postcode |
| Ikot Ebita | 521108 |
| Ikot Udofia | 521108 |
| Ubetim | 521108 |
| Ikot Edebe | 521108 |
| Ikot Ukpong | 521108 |
| Udofia | 521108 |
| Ikot Edong | 521108 |
| Ikot Uyo Nsit | 521108 |
| Unyehe Nsit | 521108 |
| Ikot Eket | 521108 |
| Iwok Atai | 521108 |
| Ikot Ekpot | 521108 |
| Iwok Nsit | 521108 |
| Ikot Esen | 521108 |
| Iwok Obio Aduang | 521108 |
| Ikot Esop | 521108 |
| Nda Nsit | 521108 |
| Idifa | 521108 |
| Ikot Essien | 521108 |
| Ndisiak | 521108 |
| Idikpa | 521108 |
| Ikot Inyang | 521108 |
| Ndon Ekpe | 521108 |
| Idikpa Ikot Ntung | 521108 |
| Ikot Itie-Udong | 521108 |
| Ndon Ikot Itie-Udung | 521108 |
| Ikot Abasi | 521108 |
| Ikot Mkpo | 521108 |
| Ndon Omun | 521108 |
| Ikot Abiaenyie | 521108 |
| Ikot Nkpene | 521108 |
| Odot No.1 | 521108 |
| Ikot Abiyan | 521108 |
| Ikot Ntuen | 521108 |
| Odot No.2 | 521108 |
| Ikot Akpabio | 521108 |
| Ikot Obong | 521108 |
| Odot No.3 | 521108 |
| Ikot Akpan Ike | 521108 |
| Ikot Otu | 521108 |
| Okoro Atai | 521108 |
| Ikot Asua | 521108 |
| Ikot Ubok Udom | 521108 |
| Okoro Nsit | 521108 |
| Adia Nsit | 521108 |
| Akpang Offop | 521108 |
| Etobodom | 521108 |
| Ibakang | 521108 |
| Ibedu | 521108 |
| Ibiakpan | 521108 |
| Idiaba | 521108 |