How to Block a Number on Your Smartphone

pcmag.com:

There are all sorts of reasons to block a number: an ex who can't take a hint, relentless telemarketers, or those scammers who love spoofing. When your phone has buzzed one more time than you can take, it's time to block that number. But how? Here are the steps to take depending on your OS and carrier.

The first way to reduce the number of unwanted calls coming to your phone is to ditch telemarketers by putting your number into the National Do Not Call Registry. On DoNotCall.gov(Opens in a new window), you can register up to three numbers at once and check if your digits are already there(Opens in a new window). You'll need to include an email address to confirm your registration. Or call 1-888-382-1222 (TTY: 1-866-290-4236) from the phone you want to register.

According to the FTC, which runs the registry, your phone number will be added to the registry within 24 hours, but it will likely take up to 31 days for sales calls to stop. If telemarketers persist in calling, file a complaint(Opens in a new window).

Apps like RoboKiller and Nomorobo also block telemarketers and robocallers (and even deploy answer bots that pester them). And apps such as Do Not Respond handle text spammers, too.

Don't expect this to end unwanted calls, though. Robocalls remain rampant, although the FCC has taken measures to cut down on them(Opens in a new window). While you wait for real results, here are some other steps you can take to reduce your phone ringing off the hook.

In iOS 13 and above, you can silence calls from unknown callers by going into Settings > Phone and turning on Silence Unknown Callers. Any caller who is not in your contacts list, Siri Suggestions, or recent outgoing calls is automatically directed to voicemail. You'll