The process of preventing one’s phone number from being displayed to the recipient during a phone call is a common privacy concern. When a call is placed with a blocked or hidden number, the recipient’s caller ID typically displays “Private Number,” “Unknown Number,” or similar. This function ensures the recipient does not see the caller’s actual phone number.
Concealing a phone number offers a layer of privacy, particularly when contacting unfamiliar individuals or businesses. It can also be useful to avoid unwanted call backs. Historically, blocking a number required contacting the phone service provider, but modern smartphones offer built-in functionality for this purpose, affording users greater control over their personal information.
