Bharti Airtel Limited also known as Airtel is an Indian global telecommunications services company based in Delhi, India. It operates in 18 countries across South Asia and Africa, and also in the Channel Islands. Airtel provides GSM, 3G, 4G LTE mobile services, fixed line broadband and voice services depending upon the country of operation. Airtel had also rolled out its VoLTE technology across all Indian telecom circles except Jammu and Kashmir and Andaman and is likely to launch in these circles soon. It is the Third largest mobile network operator in India and the Second largest mobile network operator in the world with over 293. 79 million subscribers. Airtel was named India's second most valuable brand in the first ever Brandz ranking by Millward Brown and WPP plc.