Afghan Wireless Monthly Night Surfer Internet Bundle gives you 4 GB Internet for the off-peak hours only (night), for the fee of 199 AFN and available for 30 days use only.
How to Activate
Send N4GB to 151
How to Deactivate
Send DN4GB to 151
How to Check Balance
Send N4GB# to 151
TERMS AND CONDITIONS
Night Surfer bundle is valid from 12:00 AM to 7:00 AM only
Any additional usage beyond the data included in the bundle is charged at 8 Afs per MB.
Source Link: Afghan Wireless Official Website
For Afghan Wireless Internet Settings please visit the Afghan Wireless Internet or APN setting for iPhone and Andriod page