Bharti Airtel shuts down the 3G network in Kerala. Airtel is upgrading all 3G services to 4G. Airtel will continue to provide 2G services. All broadband of Airtel service now will have high-speed 4G network. Airtel uses spectrum bank across 2300 Mhz (TD LTE), 2100 Mhz (LTE 2100), & 1800 Mhz (FD LTE).upgrading
