Spam calls and robocalls are more than annoying - many are scams that pretend to be a bank, a delivery company or tech support. You can't stop every one of them, but both iPhone and Android have built-in settings that catch most of them before your phone rings. This guide covers those settings, how to block a single number, and what to do when a spam call gets through.
Menu names change a little between versions, so where iPhone or Android differ by version or phone maker, the options are noted.
Apple offers this setting on recent iOS versions. Where it lives depends on your iOS version:
Trade-off: a new doctor's office, a school or a delivery driver may also be silenced. Check your voicemail and Recents list every day while you get used to it.
On newer iOS versions, Settings > Apps > Phone also has a Call Filtering section. Turn on the options for unknown callers and spam if you see them. Filtered calls are kept in a separate list - in the Phone app, tap the Filter button to see them.
Your carrier or a trusted call-blocking app can add its own spam list. After installing one from the App Store, turn it on in Settings > Apps > Phone > Call Blocking & Identification. Only use well-known apps, and read what data they collect before allowing access.
Blocked callers can still leave voicemail; those messages go to a Blocked Messages list at the bottom of your voicemail.
Most Android phones use the Google Phone app (Pixel and many other brands). Samsung phones use Samsung's own Phone app with similar options.
Some Pixel phones in some countries also offer Call Screen, which can answer unknown callers for you and ask why they are calling. If you see it in the same menu, you can set it for spam or unknown numbers.
The exact names change between One UI versions. If you don't see these, search Settings for "spam".
Many mobile carriers offer free spam-call blocking or labelling, sometimes with a paid upgrade. Search your carrier's website or app for "spam call protection". Stick to your carrier's own app or website - not a link sent to you by text.
Reporting doesn't stop the next call immediately, but it helps regulators and phone companies track down the callers:
If you already talked to a scammer:
Combine the settings: turn on your phone's spam filter, add your carrier's protection, and block and report every number that gets through. If a caller claims to be from GetQuickTechSupport or any other support company and you didn't contact them first, hang up - real support teams don't cold-call you about a virus on your device.
Open Settings > Apps > Phone (Settings > Phone on older iOS). Turn on Silence Unknown Callers, or on newer iOS set Screen Unknown Callers to Silence, and turn on the spam filter under Call Filtering if it is offered.
In the Phone app, open Settings and look for Caller ID & spam or Spam and Call Screen. Turn on caller and spam ID and Filter spam calls. Samsung and other makers use their own names for the same setting.
Calls from numbers not in your contacts go to voicemail without ringing, so a doctor or delivery driver may not get through. Check voicemail and recent calls regularly, or use call screening instead of silencing.
No. Don't answer, don't press any key and don't call back. Answering can confirm that your number is active. Block the number and report it.
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