Silent Voicemail Scam Floods Phones with Empty Messages Without Ringing

Your phone buzzes with a voicemail alert, but it never rang. The pattern repeats every 20 to 30 minutes, filling the inbox with silent messages from changing numbers.

Mike from Westport, Connecticut, faces this now. He wrote, "I am so upset. Every 20 to 30 minutes, I am getting voicemails, but what's weird is my phone never rings. After blocking the number, it just rolls over to a new source number. When I go to play the message, there is no audio. Is this a scammer just trying to get me to call them back? Not sure what the endgame is here. What can I do to stop this from happening? I really appreciate your help."

This silent voicemail scam, also called ringless voicemail spam, is on the rise. Scammers inject blank or short messages straight into inboxes. Phones stay silent, creating confusion. Numbers shift to dodge blocks.

Automated robocall systems drive it, using caller ID spoofing. They dial repeatedly with fake or rotating numbers. Brief connections drop, leaving empty voicemails. The pings verify active numbers for spam lists.

Scammers count on curiosity. Callers back may hit premium-rate lines, scam centers or flag their number as live. Silent drops also test numbers and slip past call filters since phones do not ring.

Numbers change via spoofing software that cycles through fakes, reassigned lines or real victims' IDs. Blocking one helps but rarely ends it alone.

These are not hacks. They are robocall campaigns. The Federal Trade Commission urges deleting voicemails from unknown numbers without calling back.

To fight back, skip callbacks. If important, callers leave real messages.

Enable spam filters. On iPhone, go to Settings, tap Phone, turn on Silence Unknown Callers to send non-contacts to voicemail unheard. Or select Ask Reason for Calling under Screen Unknown Callers; it prompts callers to identify before ringing. Turn on Call Blocking & Identification and Business Call Identification too.

Samsung users open the Phone app, hit the three-dot menu, go to Settings. Toggle Caller ID and spam protection on. Block unknown numbers. Enable Bixby Text Call for AI screening of unknowns.

Voicemail stays carrier-controlled, so some slip through.

Call-blocking apps spot patterns and halt repeats. Contact carriers for network blocks against ringless drops. Data removal services scrub numbers from broker lists; check CyberGuy.com for options.

Report to the FTC at reportfraud.ftc.gov or 1-877-FTC-HELP. Register at donotcall.gov, though scammers ignore it. Keep numbers private.