Airtel India commonly known as Airtel, is the second largest provider of mobile telephony and third largest provider of fixed telephony in India, and is also a provider of broadband and subscription television services. The brand is operated by several subsidiaries of Bharti Airtel, with Bharti Hexacom and Bharti Telemedia providing broadband fixed line services and Bharti Infratel providing telecom passive infrastructure service such as telecom equipment and telecom towers. Currently, Airtel provides 4G and 4G+ services all over India and 5G service in selected cities. Currently offered services include 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.
Airtel is the first Indian telecom service provider to achieve Cisco Gold Certification. It also acts as a carrier for national and international long distance communication services. The company has a submarine cable landing station at Chennai, with a connection to Singapore. Airtel was named India's second most valuable brand in the first ever Brandz ranking by Millward Brown and WPP plc in 2014.
Airtel operates in all telecom circles of India.
On 18 May 2010, the 3G spectrum auction was completed and Airtel paid the Government of India for spectrum in 13 telecom circles of India: Delhi, Mumbai, Andhra Pradesh, Karnataka, Tamil Nadu, Uttar Pradesh (West), Rajasthan, West Bengal, Himachal Pradesh, Bihar, Assam, North East, and Jammu & Kashmir. Airtel also operates 3G services in Maharashtra & Goa, Kolkata, Gujarat and Punjab circles through an agreement with Vodafone Idea. This gives Airtel a 3G presence in all 22 out of 22 circles in India. Airtel is fined by DoT 3.50 billion for not stopping offering 3G Services through Roaming Pacts outside its Licensed Zones in Seven Circles.
On 20 September 2010, Bharti Airtel said that it had given contracts to Ericsson India, Nokia Siemens Networks (NSN) to set up infrastructure for providing 3G services in the country.