It has AI algorithms with built-in free reverse phone lookup service and customized answer bots for detection, engagement and blocking of unwanted calls and messages.
RealCall is a US based AI smartphone application, to detect, engage and block spam calls, with a database of known numbers and an AI algorithm to identify phone numbers and block calls from robocallers, spammers, telemarketers and scammers.
[3] It has reverse lookup service, used to find owner name, address, network carrier, location, risk level of unknown numbers,[4] and system integrated with FTC Do Not Call Registry.
[5][6] RealCall is developed by Second Phone Number Inc., a privately held company with a head office in San Jose, California, US.
[citation needed] As of 2022, It has collected 1.5 billion phone numbers in its global database.