NumBan
Report voicemail callback numbers, not spoofed caller ID.
Details
- External ID
- 1260676
- Source
- PH
- Company
- —
- Product
- NumBan
- Website domain
- producthunt.com
- Launched
- Sept. 26, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.9330233055377378
- Tags
- iOS, Social Impact, Security
- Fetched at
- Sept. 28, 2026, 1:01 a.m.
- Updated at
- Sept. 28, 2026, 1:01 a.m.
Description
NumBan is the first app to combat phone scammers using the number they leave on your voicemail, which cannot be faked. Most apps block the caller's phone number, which is a spoofed caller ID. Users can simply share the voicemail with NumBan and our system will transcribe it, extract the number, look up the phone carrier, and report the number to their abuse team. When we detect that a number has been abandoned, we count it as a kill and increment our leaderboard!
Enrichment
- Theme
- sleep, wake, and clock utilities
- Vertical
- Security
- Function
- Communication
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- spam callback reporting tool for phone users
- Manually corrected
- False
Could you build this?
Yes The app accepts audio uploads, passes them to a speech-to-text API (e.g. Whisper), extracts phone numbers via regex/NER, and checks them against a community database.
Competitors
Other products that read as similar to this one — 86 launches clear the similarity bar, closest 8 shown.
Attention rank: #9 of 87 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 251 days after the earliest competitor.
- Terminal Phone · hn · 2026-02-26 · 322 upvotes · similarity 0.43
- Numbra Game | Code Game · ph · 2026-09-30 · 1 upvotes · similarity 0.42
- Whislink · ph · 2026-09-30 · 2 upvotes · similarity 0.39
- Awayk · ph · 2026-09-15 · 2 upvotes · similarity 0.38
- Hola AI · ph · 2026-09-22 · 94 upvotes · similarity 0.38
- Assay · ph · 2026-09-09 · 2 upvotes · similarity 0.38
- Mobile No Track · ph · 2026-09-13 · 1 upvotes · similarity 0.38
- rawgram · ph · 2026-09-09 · 1 upvotes · similarity 0.38
Other launches for this product
- No other launches for this product.