Making your number private is a method of concealing your phone number from caller ID displays. For instance, when you call a customer service line, your number may appear as “Private” or “Unknown” instead of revealing your personal contact information.
Keeping your number private offers advantages such as increased privacy, protection against unwanted calls, and a sense of anonymity. Historically, the advent of caller ID in the 1980s led to a demand for solutions like private numbers, as individuals sought to regain control over the disclosure of their contact details.