WaveDigger taps Apple's secret API to pinpoint Wi-Fi and cell towers

WaveDigger: Dig into wireless signals to discover their physical locations

WaveDigger taps Apple's secret API to pinpoint Wi-Fi and cell towers

WaveDigger is an open-source tool that queries Apple's undocumented WLOC API to locate Wi-Fi access points by BSSID and cell towers by network parameters. Built with Next.js, TypeScript, and deck.gl, it provides an interactive map, search history, and responsive design. The project builds on reverse-engineering from apple-corelocation-experiments and is hosted at wavedigger.networksurvey.app.

This project would not be possible without the incredible work done by the apple-corelocation-experiments team.
  1. luma

    Looks like an open version of SkyHook from way back in 2003: https://en.wikipedia.org/wiki/Skyhook_Wireless

    For a while they had a paid program, I had a Windows Mobile app I could run with an external GPS dongle that would record wifi APs and location, upload to skyhook, who would occasionally cut me a check for my trouble. I made tens of dollars!

  2. drnick1

    I started rotating my BSSID weekly after I learned Apple and Google abused it to track the location of people and devices.

    Permanent hardware or software IDs, such as the Windows GUID or machine-id on Linux (systemd) are inevitably abused for surveillance sooner or later.

  3. anigbrowl

    Isn't this just wha WIGLE does?

More from this day

2026-09-24