SpamBlockReport

Spam prevention

How to stop spam calls (2026 guide)

9-minute read · Updated 2026-05-30

Americans receive an estimated 4 billion robocalls a month, per YouMail's Robocall Index. There's no single “turn off spam calls” button — but a layered approach actually works. This guide covers every effective method, ordered by how much friction each one costs you.

1. Register on the FTC's Do Not Call list (5 minutes, free)

Go to donotcall.gov/register and submit your number. Legitimate telemarketers are legally required to remove you within 31 days. This does not stop illegal robocallers (who are already violating the law), but it cuts out the lawful end of the spectrum.

2. Enable your phone's built-in spam filter (2 minutes, free)

iPhone: Settings → Phone → Silence Unknown Callers. Unknown callers go straight to voicemail; they don't ring you at all.

Pixel: Phone app → ⋮ → Settings → Caller ID & spam. Toggle on “Filter spam calls.” Optionally enable “Call Screen” for live AI screening of unknown callers (Pixel-only feature).

Samsung / generic Android: Phone app → ⋮ → Settings → Caller ID & spam protection. Toggle on. Samsung devices ship with Hiya integration that labels likely spam.

3. Turn on your carrier's spam-blocking service (free or small fee)

All four major US carriers offer free spam-blocking apps that run at the network level — they catch spam before it reaches your phone, which is more effective than on-device filtering.

  • • AT&T ActiveArmor — free app, includes spam-call blocking and caller ID
  • • Verizon Call Filter — free basic, $4/mo for premium caller ID
  • • T-Mobile Scam Shield — free, includes scam ID and number changing
  • • US Mobile / Mint Mobile — use carrier-provided Hiya integration

4. Add a screening layer that engages the caller

The methods above all work by labeling or blocking — none of them answer the call. If a number isn't in any spam database (the case for most fresh robocall campaigns and all spoofed numbers), your phone still rings.

Screening tools fix that by actually picking up the call and asking who's calling. Robocallers can't answer the question; legitimate callers can. Three approaches:

  • • Google Call Screen (Pixel only) — free, on-device, decent quality. Pixel phones only.
  • • AI receptionist services — work on any phone via call forwarding. The AI answers, captures intent, and only routes through calls you'd want.
  • • Human answering service — the most expensive option ($100-$500/mo). Best for businesses.

5. Report individual numbers as they come in

Reporting feels small but it compounds. Every report contributes to the public spam databases that downstream filters use. You can report to:

  • • donotcall.gov/report — the FTC complaint database (public, feeds many filters)
  • • spamblockreport.com/report — adds to the public lookup database, helps the next person who searches the number
  • • Your carrier's spam-reporting flow (often built into the native phone app)

What doesn't work

  • • Blocking individual numbers — robocallers cycle through hundreds of spoofed numbers daily. Blocking one does almost nothing.
  • • Pressing 1 to “opt out” — that confirms your number is live and routes you onto more lists. Hang up.
  • • Free reverse-lookup sites — most are SEO-bait that monetize ads. Use the FTC database or a trustworthy public lookup.

The realistic outcome

With steps 1-3 done, expect a 50-70% reduction in spam calls within 30 days. Step 4 (active screening) gets you to near-zero interruption — the calls still happen, you just don't hear the ring.