*141# is one of the airtel nigeria main USD code, see how to use it belolw;

Airtel Lite Plan (200MB) cost 1,000 dial *141*712*4#

Airtel Midi (250MB) cost 1,300 dial* 141*712*13#

Airtel Smartphone 1 cost (500MB) 2,000 dial *141*712*12#

Airtel Smartphone 2 (1GB) cost 3,000  dial *141*712*10#

Airtel Plus Plan (3GB)  cost 5,000 dial *141*712*1#

Airtel Max Plan (5GB) cost 8,000 dial *141*712*2#

Airtel Premium Plan (10GB) cost 15,000 dial  *141*712*5#

Airtel Prime Plan (15GB) cost 22,000 dial *141*12*7#