NumBan

Meet NumBan

NumBan helps iPhone users report callback numbers found in suspicious voicemail messages. Instead of relying only on the incoming caller ID, it focuses on the number the caller asks you to dial. You share a voicemail with the app, review the detected number and relevant transcript, and confirm details when the recording is unclear.

The app keeps the evidence, reporting status, and next action together so you can follow what happens to a reported number. Voicemail audio and transcripts remain private unless you choose to publish them, and personal email addresses are excluded from carrier reports. The accompanying website offers number lookup and information about recently reported numbers.