Some Airtel Nigeria code numbers you need to know

I do not know whether you are familiar with these Airtel codes formally zain I am about to unlash here in this blogspot?
If you are not just gradually go through them, at last you will surely have a cause to smile. Without wasting your time, I will stipulate the codes in alliance with their functions. Here are them:

~ If you want to recharge your account: press *126*recharge pin number#

~ If you want to check your account balance: press *123#

~ If you want to check your
free sms balance: press *456*2#

~ Do you want to send 'call me back' request: press *140*recipient's number#

~ Do you want to send 'credit me' request: press *141*8*recipient's number#

~ Do you want to add family and friends: press *141*2*that person's phone number#

~ If you want to check your family/friends numbers: press *141*5#

~ Do you want to remove numbers in your family and friends: press *141*3#

~ Do you want to migrate to simply special tariff: press *141*701#

~ For simply smooth migration: press *141*702#

~ To migrate to unity tariff (smart) : press *141*703#

~ To migrate to truetalk plan: press *141*708#

~ To migrate to truetxt plan: press *141*709#