The ability to prevent a phone number from being displayed to the recipient of a call on Android devices is a feature often sought by users for various reasons. This function, effectively masking the originating number, allows individuals to make calls anonymously or with a degree of privacy. As an example, an investigative journalist might utilize this feature to contact sources without revealing their direct contact information initially.
Maintaining control over one’s personal data and call identity offers increased security and prevents unsolicited call-backs. It is particularly relevant in situations where an individual may be conducting business calls but prefers not to share their personal number, or when making contact with individuals who are unknown or potentially untrustworthy. Historically, the technology to achieve this has evolved from basic *67 dialing codes to more sophisticated settings within mobile operating systems.