TRAI was successful in using unsolicited commercial communication (UCC) and now it plans to make the use of blockchain technology for mobile number portability. TRAI head also appreciated carriers, Bharti Airtel, Vodafone Idea and Idea Cellular for using blockchain technology to filter the spam calls and messages. Not only for mobile number portability, but blockchain can also be used for interconnecting settlements, supply chain streamlining, and content partner settlements.