Hi guys, today I am sharing my experience with airtel sim service.my experience is very good.a network is very good and powerful network.any time and any places network is all time full.airtel available network in 2g, 3g, 4g and network is good range available.Customer service is very good and all time helping.any problems solved quickly.Charges and billing is very costly and very low budget prices.and all time provid offers.not disturb time to time call and massaging. MY OPINION AIRTEL MOBILE OPERATING SERVICE IS VERY GOOD.