The issue of spam calls is a significant problem, with an estimated 26.3 billion robocalls to US phone numbers in 2018. Most of these calls come from scammers using software dialers to call as many numbers as possible, and enough people fall for these scams that the practice remains profitable. To combat this issue, individuals can take several steps such as enabling built-in spam call blocking on their Android phones, stopping spam calls through their carrier's system, or using third-party apps like Truecaller, Hiya, RoboKiller, and Nomorobo to identify and block spam calls. Additionally, blocking individual spam callers on both Android and iPhone devices can provide a temporary solution, while also considering other methods such as registering for the US FCC's Do Not Call List and enabling call screening powered by Google Assistant.