How to activate airtel 4g in Bangladesh: activate airtel 4g is easy just do this Dial *121*2# and Proceed 1 Click or Submit. If your Sim is 3g and old sim you need to go Customer care in Airtel and replace it to 4G Sim. That’s it.
How to check airtel internet balance bd: check airtel balance in Bangladesh just Dial *3# or *8444#
How to check SMS balance in airtel: For Check SMS Balance in airtel Dial *121*7#
How to loan in airtel: Gel loan in airtel or for Emergency Balance dial *141*10# or just dial 20141
How to see airtel balance: For check airtel balance Dial *778# and Check Emergency Balance Dial *141*10#