The A123 highway is a highway in Nigeria. It is one of the east-west roads linking the main south-north roads. (It is named from the two highways it links).
Map of A123, Nigeria
It runs from the A1 highway at Ilorin, the capital of Kwara State to the A2 highway north of Okene, Kogi State. The main town on the route is Kabba.
References
A123 highway (Nigeria) Wikipedia(Text) CC BY-SA