RIL's telecom arm Reliance Jio already has pan-India 4G spectrum.
"RCom becomes India's first and only operator with nationwide footprint of contiguous 800/850 MHz spectrum. RCom operations now future-proofed across all circles for most advanced LTE technology at most optimal cost," the company said in a statement.
Airtel, the country's leading telecom operator, in a statement said, "Post the latest spectrum acquisition, Bharti Airtel's spectrum mix will give it unmatched reach in the mobile data segment across 3G and 4G with a pan-India footprint."
Reliance Communications made bids worth Rs 4,299 crore and is required to make an upfront payment of Rs 1,106 crore.
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The company won 800 MHz spectrum in 11 service areas, but could not defend its 900 MHz spectrum holding in five out of seven circles expiring in 2015-16.
However, RCom spectrum holding in 800 Mhz in some parts of the country cannot be used to offer 4G service as the matter is sub-judice or to start 4G service using those airwaves it will have to pay one-time spectrum fee of Rs 173 crore demanded by government.