NumBan
Report Scam Callback Numbers
Only for iPhone
Free · In‑App Purchases
iPhone
Share a scam voicemail. NumBan hits the spoken callback number and ranks confirmed kills. Your contact info never goes to the carrier.
NumBan hits the callback number a scam voicemail asks you to dial.
Caller ID is easy to spoof. The number that the scammers need you to call back is not. Share the voicemail or a screenshot of one from the iPhone Phone app. NumBan extracts that spoken number, prepares a verified abuse report, and routes it through a NumBan-managed alias. Your personal contact info is never included.
After enough independent reports, the complaint is sent to the carrier or RespOrg that hosts the number. NumBan re-checks periodically. When the number reports that it has been disconnected, that is a kill. Kills rank you on the leaderboard.
How to file a hit
• Open Phone and find the voicemail
• Tap Share and choose NumBan
• Sign in with your US mobile number if you have not already
• Confirm the callback number when asked
• Optionally share a screenshot to verify the timestamp when the voicemail was received
What you get
• A report history for every number you have hit
• Push when a number you reported looks dead
• A public leaderboard ranked by confirmed kills, not raw filings
• Copy-ready notes plus Safari links to FTC ReportFraud and FCC consumer complaints
NumBan Pro
Free accounts can file 3 verified reports per calendar month. Pro removes that cap and unlocks extra reporting tools in the app.
• NumBan Pro Monthly — $0.99 per month
• NumBan Pro Yearly — $9.99 per year
Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel in Settings → Apple ID → Subscriptions, or in the app under Manage subscription.
Privacy
Reports go out from a NumBan relay address. Voicemail audio and screenshots stay private evidence and is never published. Public number pages on numban.com show only aggregate, redacted data.
NumBan is a consumer reporting tool, not a law firm, and does not guarantee that a carrier will disconnect a number.
Support: https://numban.com/help
Privacy: https://numban.com/privacy
Terms: https://numban.com/terms
Ratings & Reviews
Better matching for screenshots to voicemails
Ability to delete screenshots and voicemails
More accurate lookups of the phone number carrier
The developer, Ammon Brown, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ammon Brown
- Size
- 24 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Contests
- In-App Purchases
Yes
- English $0.99
- English $9.99
- Copyright
- © 2026 Ammon Brown
