Spam Call Blocking

Users share experiences, apps like Truecaller and Nomorobo, and strategies such as whitelisting contacts or blocking area codes to combat robocalls and spam phone calls.

📉 Falling 0.3x Security
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#2241
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Keywords

TFA US VOIP IME AG SpamBlocker ID FWIW WhatsApp UK spam calls phone numbers number scams block contacts area email

Sample Comments

deviationblue • Dec 31, 2017 • View on HN

Interesting, but is there something for spam callers? It's not enough to block them or report them.

thrtythreeforty • Aug 25, 2025 • View on HN

I have an app on Android called SpamBlocker. I added a regex rule to deny any call from my area code - like you, I haven't lived there for a long time. I'd 100% recommend this approach.

nix0n • Oct 5, 2023 • View on HN

It doesn't even work for calls. I get robocalls from spoofed numbers about once a week.

alerighi • Nov 11, 2017 • View on HN

I use truecaller to automatically block spam calls, it works very well.

sarcasmatwork • Mar 16, 2023 • View on HN

I wonder if any of the robocall/spam apps block this behavior?Been using hiya for years..

dmckeon • Dec 3, 2023 • View on HN

My spam calls are down to 1 or 2 per month after using nomorobo.com for 5 years. It is not direct action as TFA suggests, but it works well for me. Callers reach voicemail, almost never leave messages, and the phone almost never rings. Free for VOIP numbers, $20/year for mobile. Several similar alternatives exist.

Pxtl • May 28, 2016 • View on HN

I wish there was a way to whitelist known contacts only on my phone, and shunt all unsolicited phone from strangers to a passcode-controlled answer bot.

thrill • Aug 6, 2019 • View on HN

I got 34 calls before noon a few weeks ago - all of them unknown numbers. I clicked the 'screen call' option or ignored it. One single person left his name and message - an old friend. Everyone else I marked as spam, so the next person may get a warning, and blocked. It works great.

ryandrake • Mar 5, 2025 • View on HN

Spam callers rotate the fake numbers they use for Caller ID, so blocking individual numbers doesn't work.

doctorshady • Jan 27, 2017 • View on HN

Look into call blocking, selective call forwarding.