A pager
Details
- External ID
- 46264657
- Source
- HN
- Company
- —
- Product
- A pager
- Website domain
- udp7777.com
- Launched
- Dec. 14, 2025
- Cohort
- —
- Upvotes
- 104
- Upvotes percentile
- 0.9055343511450382
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
Hello HN,I basically don't use notifications for anything. The noise is too much. Slack is too loud. Email is too slow. But sometimes you do need a note in your face.I found myself missing 1990s pagers. I wanted a digital equivalent - something that does one thing: beep until I ack it.So I built UDP-7777.Concept:- 0% Cloud: It listens on UDP Port 7777. No accounts, no central servers. You don't need Tailscale/ZeroTier/WG/etc, it's just easy for device sets.- CAPCODES: It maps your IP address (LAN or Tailscale) to a retro 10-digit "CAPCODE" that looks like a phone number (e.g., (213) 070-6433 for loopback).- Minimalism: Bare-bones interface. Just a box, a few buttons, and a big red blinker.The Tech:It's a single binary written in Go (using Fyne). It implements "burst fire" UDP (sending packets 3x) to ensure delivery without the handshake overhead of TCP.New in v2.2.7:- Frequency Tuning: Bind specifically to your Tailscale/ZeroTier interface.- Squelch: Optional shared-secret keys to ignore unauthorized packets.- Heartbeat: Visual/Audio alerts that persist until you physically click ACK.I built this for anyone looking to cut through the noise—DevOps teams handing off the "on-call IP", or deep-work focus where you only want interruptions from a high-trust circle.I'd love to hear your thoughts on the IP-to-Phone-Number mapping logic (it's purely visual, but I'm really into it).Site & Binaries (Signed for Mac/Win): https://udp7777.com
Enrichment
- Theme
- email infrastructure and inbox utilities
- Vertical
- Horizontal
- Function
- —
- Audience
- —
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- pager application
- Manually corrected
- False
Could you build this?
Yes A persistent alerting tool/app that loops an audio alert until acknowledged via a simple UI or webhook is a straightforward utility.
Discussion
20 comments analyzed.
Competitors mentioned: DAPNET (POCSAG-compatible radio version), PagerDuty, Wireguard (for encryption/PKI), BrowserBox (e-ink display apps)
Concerns raised: Vulnerability to jamming attacks on known frequencies, Plain-text UDP transmission lacks encryption/secrecy, Limited to desktop/software in v1, no mobile support yet, Requires understanding why to download .zip file instead of physical pager, POCSAG coverage gaps in some geographic areas
Feature requests: POCSAG-compatible radio version for wider infrastructure adoption, LTE-M pager implementation for areas without POCSAG coverage, Mobile support without requiring a server (Tailscale/ZeroTrust compatible), E-ink display integration for physical notification tokens, Frequency hopping to resist jamming
Competitors
Other products that read as similar to this one — 29 launches clear the similarity bar, closest 8 shown.
Attention rank: #3 of 30 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 40 days after the earliest competitor.
- Sidebar · hn · 2026-08-07 · 16 upvotes · similarity 0.41
- turnrelay · github · 2026-09-14 · 8 upvotes · similarity 0.39
- Ustps (UDP Speedy Transmission Protocol Secure) and USSH · hn · 2026-06-08 · 13 upvotes · similarity 0.38
- My OSINT dashboard with 60+ feeds now has a pseudonymous P2P comms · hn · 2026-05-03 · 5 upvotes · similarity 0.36
- PingStalker · hn · 2025-11-04 · 77 upvotes · similarity 0.36
- I built a macOS tool for network engineers · hn · 2026-02-10 · 243 upvotes · similarity 0.35
- Terminal Phone · hn · 2026-02-26 · 322 upvotes · similarity 0.35
- BAREmail · hn · 2026-04-08 · 44 upvotes · similarity 0.34
Other launches for this product
- No other launches for this product.