| Country | Town/City | Telephone code |
| Nigeria | Aba | +234 82 |
| Nigeria | Abakaliki | +234 43 |
| Nigeria | Abeokuta | +234 39 |
| Nigeria | Abuja | +234 9 |
| Nigeria | Ado Ekiti | +234 30 |
| Nigeria | Agbor | +234 55 |
| Nigeria | Ahoada | +234 86 |
| Nigeria | Akure | +234 34 |
| Nigeria | Asaba | +234 56 |
| Nigeria | Auchi | +234 57 |
| Nigeria | Awka | +234 48 |
| Nigeria | Azare | +234 71 |
| Nigeria | Badagry | +234 1 |
| Nigeria | Bauchi | +234 77 |
| Nigeria | Benin | +234 52 |
| Nigeria | Birnin | +234 68 |
| Nigeria | Calabar | +234 87 |
| Nigeria | Damaturu | +234 74 |
| Nigeria | Edo | +234 52 |
| Nigeria | Enugu | +234 42 |
| Nigeria | Gombe | +234 72 |
| Nigeria | Gusau | +234 63 |
| Nigeria | Hadejia | +234 78 |
| Nigeria | Ibadan | +234 2 |
| Nigeria | Ijebu Ode | +234 37 |
| Nigeria | Ikare | +234 50 |
| Nigeria | Ile Ife | +234 36 |
| Nigeria | Ilorin | +234 31 |
| Nigeria | Jalingo | +234 79 |
| Nigeria | Jos | +234 73 |
| Nigeria | Kaduna | +234 62 |
| Nigeria | Kafanchau | +234 61 |
| Nigeria | Kano | +234 64 |
| Nigeria | Kano Nigeria | +234 64 |
| Nigeria | Katsina | +234 65 |
| Nigeria | Kontagora | +234 67 |
| Nigeria | Lafia | +234 47 |
| Nigeria | Lagos | +234 1 |
| Nigeria | Lokoja | +234 58 |
| Nigeria | Maiduguri | +234 76 |
| Nigeria | Makurdi | +234 44 |
| Nigeria | Minna | +234 66 |
| Nigeria | New Bussa | +234 33 |
| Nigeria | Niger Sate | +234 66 |
| Nigeria | Ogoja | +234 45 |
| Nigeria | Okitipupa | +234 59 |
| Nigeria | Onitsha | +234 46 |
| Nigeria | Oshogbo | +234 35 |
| Nigeria | Owerri | +234 83 |
| Nigeria | Owo | +234 51 |
| Nigeria | Oyo | +234 38 |
| Nigeria | Pank Shin | +234 70 |
| Nigeria | Port Harcourt | +234 84 |
| Nigeria | Sapele | +234 54 |
| Nigeria | Sokobo | +234 60 |
| Nigeria | Umuahia | +234 88 |
| Nigeria | Uyo | +234 85 |
| Nigeria | Warri | +234 53 |
| Nigeria | Wukari | +234 41 |
| Nigeria | Yenegoa | +234 89 |
| Nigeria | Yola | +234 75 |
| Nigeria | Zaria | +234 69 |
