Wireless subscriber base increased from 427.28 million to 441.66 million, registering a growth of 3.36 per cent, while wireless teledensity stood at 37.87.
However, the wireline subscriber base declined from 37.54 million to 37.41 million in July.
State-run telecom operators Bharat Sanchar Nigam Ltd (BSNL) and Mahanagr Telephone Nigam Ltd (MTNL) own 85.99 per cent of the market share.
While major private wireline service providers have increased their subscriber base, BSNL and MTNL lost 0.17 million subscribers, TRAI said.
The wireline teledensity stood at 3.21 at July-end. Total broadband subscriber base increased to 6.8 million from 6.62 million, a growth of 2.7 per cent.