The presentation of a caller ID as “Non-public Quantity,” “Unknown Quantity,” or comparable variations on an Android machine signifies that the calling celebration has deliberately blocked or suppressed their telephone quantity from being exhibited to the recipient. That is typically achieved by a characteristic provided by the caller’s phone service supplier, activated both on a per-call foundation or as a default setting. For instance, somebody dialing from a landline would possibly precede the dialed quantity with *67 to dam caller ID for that particular name, whereas cellular customers can usually regulate their telephone’s settings to stop their quantity from being transmitted by default.
The deliberate masking of caller identification serves a number of functions. People might select to hide their quantity to keep up privateness, particularly when contacting companies or unfamiliar events. It can be utilized by organizations for safety causes, stopping potential call-back makes an attempt or harassment. Previously, this characteristic was primarily employed to protect private data; nevertheless, it is now additionally employed by name facilities and advertising corporations. Whereas providing a degree of anonymity, the observe may also create suspicion amongst recipients, resulting in name rejection or unanswered calls.