So here comes another special plans for you guys. Check for the codes beneath..
The Airtel unlimited data plan can only be used at night (12AM to 6AM every day) and its comes in three categories just like the hourly based plan.
1. 1hour plan for N100 – dial *481*1# to activate.
2. 3hours plan for N300 – dial *481*2# to activate.
3. 6hours plan for N500 – dial *481*3# to activate.
Note: The plan works for all devices ranging from Android Smartphones, iPhone/iPad, Laptops, BB10, Windows phone, Symbian/ Java phones.