All Data services with their SHORT CODES to check balance

MTN SME *312*4*3*3#

MTN Data Card *312*5#

MTN GIFTING *312*5#

MTN Corporate Gifting *312*4*7*4# or *312*5#

Airtel CG *140# (check balance under edu bundle)

Airtel GIFTING *140#

GLO GIFTING *127*0#

GLO Corporate Gifting *127*0#

9mobile data *228#

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Data is Life!

May God continue to Bless you #Aameen