Checks by Legit.ng on Airtel's website showed that Airtel has increased its call rates from 18 kobo per second to 25 kobo per second, which is about N10.80.

Airtel Nigeria, the country’s second-largest telecom operator, has revised its data pricing structure, implementing a tariff adjustment of up to 50 per cent, according to details published on ...

Airtel’s call rates rose to 25 kobo per second from about 18 kobo per second. Like MTN, Airtel has left some tariff plans untouched. For instance, the 5GB plan/week for N1,500 remains unchanged.