About

About NumBan

NumBan hits scam callback numbers. Scammers spoof caller ID, but they still need a number you can dial. Share the voicemail. We file a verified complaint with the carrier that hosts that number. When it dies, that's a kill. Kills land on the board.

How It Works

Share a voicemail from your iPhone's Phone app. NumBan extracts the callback number and prepares a report for carrier filing. Complaints are currently filed manually while automated email delivery is disabled. NumBan re-checks reported numbers and notifies you about status changes.

Why the callback number

Inbound caller ID is cheap to spoof and rotate. The number they ask you to call back is the line they have to keep alive. That is the hit. Blocking apps miss it. Government forms rarely close the loop. The leaderboard is how you see the hit land.

Privacy First

Your personal contact information is not included in carrier reports. When sent by email, complaints use a NumBan-managed relay address. Public pages show aggregate, redacted data. You can request account deletion in Settings; if an Apple-billed NumBan Pro subscription is set to renew, cancel it before deletion can continue.