Show HN: Chat with people who share the same Internet connection (= IP address)

#1

Post by kkovacs » Thu, Jan 01, 2026, 12:23 AM UTC

I built a simple, ephemeral chat service that connects you only with users who share the exact same public IP address as you.

It's essentially a temporary, isolated chat room defined by your NAT gateway.

It's not super useful nowadays, but let's see where this takes us. :)

Re: Show HN: Chat with people who share the same Internet connection (= IP address)

#2

Post by dClauzel » Thu, Jan 01, 2026, 12:47 AM UTC

Dude, IPv6… We are in 2026.

The GUA are 128 bits, every one of us is alone.

#3

Post by kkovacs » Thu, Jan 01, 2026, 12:54 AM UTC

dClauzel wrote: post #2

Dude, IPv6… We are in 2026. The GUA are 128 bits, every one of us is alone.

You would be surprised how many of us are on IPv4 :) With GUA, who needs tracking cookies? ;)

#4

Post by baobun » Thu, Jan 01, 2026, 1:52 AM UTC

I guess this could be fun for people using shared VPN and proxy services

#5

Post by [deleted] » Thu, Jan 01, 2026, 10:09 AM UTC

[deleted]

#6

Post by edmundsparrow » Thu, Jan 01, 2026, 10:33 AM UTC

This is cool. I can use this on gnokestation

#7

Post by edmundsparrow » Thu, Jan 01, 2026, 10:40 AM UTC

Looks like a chatroom. What about private messaging

#8

Post by kkovacs » Thu, Jan 01, 2026, 11:01 AM UTC

edmundsparrow wrote: post #7

https://i.postimg.cc/hjyfXdmM/Screenshot-20260101-113650.jpg Looks like a chatroom. What about private messaging

That could be a logical next step!

#9

Post by kkovacs » Thu, Jan 01, 2026, 11:03 AM UTC

edmundsparrow wrote: post #6

This is cool. I can use this on gnokestation

Thanks for the encouragement, Edmund!

#10

Post by kkovacs » Thu, Jan 01, 2026, 11:05 AM UTC

baobun wrote: post #4

I guess this could be fun for people using shared VPN and proxy services

Heh, I never thought about that, but it's true.