How to check your subscription Balance on all network in Nigeria

many people always how much mb do i have left on my phone, how do i check my balance guest this is for you all.

Checking MTN Data status/balance

• Check MTN Mobile data plan: Text 2 to 131
• Check MTB BIS subscription: Text Status to 21600
• Check MTN SME Data: Dial *691*7# or text sharebalance to 131
• Check MTN Goodybag: Text 403 to 131

Checking Glo Data status/balance

• Check Glo data plan: Text Info to 127
• Check Glo BIS subscription: Text Status to 777

Checking Airtel Data status/balance

• Check Airtel mobile data: Dial *141*11*0# or *123*10# or dial *141*712*0#
• Check Airtel BIS: Text Status to 440 or dial *123*9#

Checking Etisalat Data status/balance

• Check Etisalat data balance: Text Bal to 228 or dial *228#
• Check Etisalat BIS: Dial *228#