BSNL started it's 4G service in Kerala yesterday. Initially the 4G service has been made available at five locations in the high range Idukki district. This service has been launched, with BSNL's existing spectrum. The first call was made to the CMD BSNL. CGM, Kerala, Shri P.T.Mathew said that, by the year end, 4G service would be made available to all its customers in all the districts by the end of the year. It may also be recollected that BSNL is making serious effort to 5 MHz 4G spectrum in the 2,100 MHz band. Once BSNL gets this spectrum allotment, it's 4G service will also be rolled out throughout the country.