Hiding your phone number is a technique for obscuring your personal contact information to protect your privacy. For example, you might hide your number on social media or when making online purchases.
Hiding your phone number is an important tool for privacy and security. It can help you avoid spam calls, text messages, and online harassment. Historically, the widespread adoption of caller ID in the 1990s made it easier for people to track down the identity of unknown callers, prompting the development of techniques for hiding phone numbers.