Spam Call Blocker FAQ

Combine three layers: turn on Android's built-in blocking and carrier spam warnings, register with the Do Not Call registry, and add a dedicated spam call blocker like Block Guard. Block Guard adds blocking rules, trusted contact whitelisting, unknown-number controls, and spoofing protection that help stop spam calls before your phone rings.

Block Guard is designed to help reduce robocalls on Android. Its blocking rules, unknown-number handling, and area code filtering help screen out automated calls that ignore the Do Not Call registry. No app catches every robocall, but most users see a significant drop in unwanted rings.

Neighbor spoofing is when spam callers fake a caller ID that matches your area code and prefix so the call looks local. People answer local-looking numbers more often, which is why spammers use the trick. Block Guard's area code and prefix filtering helps reduce these look-alike calls.

Yes. Block Guard's trusted contact controls let you whitelist family, friends, doctors, and any important number. Whitelisted callers always ring through, even when strict blocking rules are active for everyone else.

No, and no honest call blocker claims to. Spammers rotate and spoof numbers constantly, so some calls will occasionally get through. Block Guard is designed to meaningfully reduce spam calls, robocalls, and spoofed numbers, and its adjustable rules let you tighten protection over time.

Yes. Block Guard helps reduce scam calls by blocking suspicious numbers, filtering spoofed local-looking callers, and routing unknown numbers to voicemail where scam scripts tend to fail. It can't guarantee scam prevention, so pair it with healthy skepticism toward urgent requests for money or codes.

Yes. Block Guard includes SMS spam filtering that helps keep junk texts, fake delivery notices, and smishing attempts out of your message inbox - the same protection philosophy applied to texts.

Yes. The combination of aggressive blocking with trusted contact whitelisting fits seniors especially well: scam calls get filtered while family, doctors, and pharmacies always ring through. Setup is simple, and a family member can configure it in minutes. See our call blocker for seniors guide for a recommended setup.

Because local calls get answered. Spammers spoof caller IDs matching your area code and prefix - neighbor spoofing - to make you think a neighbor, school, or local business is calling. The displayed number is usually fake and changes constantly, which is why pattern-based filtering beats blocking numbers one at a time.

Block Guard is available for Android on Google Play. Go to the download page on this site and tap Get Block Guard, or search for Block Guard on Google Play. Installation is free, and core blocking tools are included.

Like any Android call blocker, Block Guard requests call and SMS permissions during setup - they're what allow it to screen calls and filter texts on your behalf. The app walks you through each step, and you stay in control of your settings.

StopSpamCalls.app is a marketing and education site for Block Guard, an Android app by RadStorm Technologies LLC. The official product site is blockguard.app; this site focuses on helping people who want to stop spam calls find practical answers and the right tool.