A withheld or blocked telephone number prevents the recipient from seeing the caller’s identification on their caller ID display. This feature allows individuals to maintain a degree of anonymity when placing calls. For example, an individual might choose to block their number when calling a business to inquire about a service, preferring not to disclose their personal contact details initially.
The ability to mask one’s telephone number offers various advantages, including protecting personal privacy and preventing unsolicited call-backs or harassment. Historically, this feature has been used by law enforcement, journalists, and individuals in sensitive professions to safeguard their identities and protect themselves from potential risks. Its existence highlights the ongoing tension between the desire for open communication and the need for individual privacy in an increasingly interconnected world.