How to Block Spam Calls and Messages - Complete Guide

Introduction

Spam calls and messages are annoying and can be dangerous. They can lead to scams, phishing attempts, and identity theft. This guide will show you how to effectively block spam calls and messages on both Android and iPhone devices.

Part 1: Android Spam Protection

1. Enable Caller ID & Spam Protection

1. Open Phone app
2. Tap Menu (3 dots) → Settings
3. Tap Caller ID & Spam
4. Enable See caller & spam ID
5. Enable Filter spam calls

2. Block Individual Numbers

1. Open Phone app
2. Tap the number in call history
3. Tap Block or More → Block number
4. Confirm blocking

3. Block Unknown Callers

1. Settings → Blocked numbers
2. Enable Block unknown callers
3. Only contacts will be able to call you

4. Block Spam Messages

1. Open Messages app
2. Long-press spam message
3. Tap Block or More → Block number
4. Or Settings → Block numbers

Part 2: iPhone Spam Protection

1. Enable Silence Unknown Callers

1. Settings → Phone
2. Enable Silence Unknown Callers
3. Calls from unknown numbers go straight to voicemail
4. Calls from contacts, recent calls, and Siri suggestions still ring

2. Block Contacts

1. Open Phone app
2. Tap number in call history
3. Tap Info → Scroll down
4. Tap Block this Caller
5. Confirm blocking

3. Block Spam Messages

1. Open Messages app
2. Tap spam message
3. Tap contact name/number at top
4. Scroll down → Tap Block this Caller

4. Filter Unknown Senders

1. Settings → Messages
2. Enable Filter Unknown Senders
3. Messages from unknown numbers go to separate folder
4. Only messages from contacts appear in main inbox

Third-Party Spam Blocking Apps

Truecaller (Android & iPhone)

• Identifies unknown callers
• Automatically blocks spam calls
• Shows caller information
• Free and paid versions available

Hiya (Android & iPhone)

• Spam call blocker
• Caller ID service
• Reverse phone lookup
• Free basic version

RoboKiller (iPhone)

• AI-powered spam blocking
• Answer bots to waste spammer time
• Call recording
• Paid subscription service

Additional Protection Tips

1. Don't Answer Unknown Numbers

• Let unknown calls go to voicemail
• Legitimate callers will leave a message
• Don't call back unknown numbers
• Use "Silence Unknown Callers" feature

2. Never Respond to Spam Messages

• Don't reply "STOP" unless you know the sender
• Replying confirms your number is active
• Delete spam messages immediately
• Don't click links in spam messages

3. Register with Do Not Call Registry

• Register your number with national Do Not Call list
• Reduces legitimate telemarketing calls
• Doesn't stop all spam (illegal callers ignore it)
• Still use phone blocking features

4. Be Careful Sharing Your Number

• Only give number to trusted sources
• Read privacy policies before signing up
• Use secondary number for online forms
• Don't post number publicly

Common Spam Scams to Avoid

Conclusion

Blocking spam calls and messages requires a combination of built-in phone features and smart habits. Enable spam protection settings, use third-party apps for additional protection, and never respond to spam. With these measures, you can significantly reduce annoying spam calls and messages.

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