Show HN: Numban reports scammers callback number rather than spoofed caller ID

Category: security

Tags: scam-prevention, voicemail-analysis, telephony, privacy

Score: 4.7/10 (Innovation: 6, Technical: 3, Documentation: 3, Utility: 5)

NumBan targets phone scammers by extracting the callback number from voicemails and reporting it, rather than the spoofed caller ID. This is a clever twist on scam mitigation that could reduce callback-based fraud, though the project appears early-stage and lacks technical depth in its public description.

Target audience: general public, security researchers, telecom providers

Repository: https://numban.com/

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