Submarine fibre optic deployment in Nigeria has been driven primarily by MTN and Glo, with MTN aggressively expanding its network in recent years. Glo initially led the market, but after peaking at 19,200 km in 2012, it significantly reduced its submarine fibre infrastructure to 9,800 km, where it has remained stable since 2014.
MTN, on the other hand, only started expanding in 2018 but rapidly scaled up to 17,984 km by 2022, making it the biggest recent investor in submarine fibre infrastructure. Airtel has largely stayed out of this segment, maintaining a negligible presence.