- 440001 - Abia, Umuahia
- 900001 - Abuja, Abuja
- 640001 - Adamawa, Yola
- 520001 - Akwa-Ibom
- 420001 - Anambra
- 740001 - Bauchi
- 600001 - Borno
- 23401 - Cross-River, Calabar
- 320001 - Yobe
- 300001 - Edo
- 400001 - Enugu
- 460001 - Imo
- 720001 - Jigawa
- 700001 - Kano
- 800001 - Kaduna
- 820001 - Katsina
- 860001 - Kebbi
- 260001 - Kogi
- 240001 - Kwara
- 101001 - Lagos, Island
- 100001 - Lagos, Mainland
- 920001 - Niger
- 110001 - Ogun
- 340001 - Ondo
- 230001 - Osun
- 200001 - Oyo
- 930001 - Plateau
- 500001 - Rivers
- 840001 - Ebonyi, Abakaliki
- 660001 - Taraba