Call Blocker

Protect yourself from spam, scam, and unwanted calls. Sync with FCC Consumer Complaints database (3.3M+ numbers), create custom block lists, manage whitelists, and block unknown callers.

Call Blocker main screen
Call Blocker

Quick Start

1
Enable Call Blocker

Toggle the "Enable" switch to On

2
Grant Permissions

Allow Phone and Call Log permissions when prompted

3
Sync FCC Database

Tap "Sync from Server" to download 3.3M+ spam numbers

4
Blocking Active

Spam calls are now automatically rejected before your phone rings

FCC Database

Database Info

3.3M+ Numbers FCC Consumer Complaints database
Auto-Sync Daily, weekly, or manual updates
Last Sync Shows when database was updated
Sync Status In progress or complete indicator

Blocking Options

FCC Database

Automatically block 3.3M+ known spam numbers from FCC Consumer Complaints.

Custom Block List

Manually add specific numbers, patterns, or entire area codes to block.

Block Unknown

Block calls from numbers not in your contacts. Stops telemarketers.

Block Private

Block calls with caller ID hidden. Stops scammers hiding their numbers.

Tabs

Navigation

Call Log All recent calls with block actions
Blocked All blocked numbers (FCC + custom)
History Blocked call attempts history
Whitelist Numbers that always get through
Hidden Advanced features and options

Blocking Numbers

From Call Log

Tap any number in Call Log tab, select "Block Number". Added to block list immediately.

Manual Entry

Tap + button, enter phone number or pattern, add to block list.

Patterns

Block with wildcards: entire area codes, number ranges, or patterns.

Whitelist Management

1
Open Whitelist Tab

Navigate to the Whitelist section

2
Tap + Button

Add new number to whitelist

3
Enter Number

Type phone number you want to always allow

4
Save

Number always gets through, even if in spam database

Pro Tip: Add important contacts (doctors, family, work) to whitelist to ensure they're never accidentally blocked.

Statistics

Blocking Stats

Total Blocked All-time blocked calls count
Today's Blocks Calls blocked today
Database Size Numbers in FCC database
Custom Blocks Your manually blocked numbers

Use Cases

Spam Protection

Automatically block known spam numbers from FCC database. Updated regularly.

Telemarketer Blocking

Block unknown and private callers to stop telemarketers completely.

Custom Lists

Block specific numbers that repeatedly call you or harass you.

Important Contacts

Whitelist ensures doctors, family, work always get through.

Troubleshooting

Calls Not Blocked

  • Verify Call Blocker enabled
  • Check permissions granted
  • Ensure number in block list
  • Check if number in whitelist

Can't Grant Permissions

  • Go to Settings → Apps → Stealth → Permissions
  • Manually grant Phone and Call Log
  • Restart Stealth app
  • Some devices need additional setup

Sync Not Working

  • Check internet connection
  • Try manual sync
  • Check sync status for errors
  • Wait and try again later

Important Calls Blocked

  • Add number to whitelist
  • Check "Block Unknown" setting
  • Review block list for number
  • Disable "Block Unknown" if too aggressive