Airtel is a very waste sim I am using this sim. It has no speed in 2g. I use 2g much.singnals are very low in some places. It has no offers. Airtel India is the largest provider of mobile telephony and second 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.Bharti Airtel Limited is part of Bharti Enterpriseand is headed by Sunil Bharti Mittal.
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. As of September 2016, Airtel has 255.73 million subscribers[6] with a market share of 24.7% in the Indian telephony market.