Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RTY callsign genealogy
Currently held by Detgen, John Peter
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W4RTY's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4RTY.
- Detgen, John PeterNCgranted 2011-03-04cancelled 2018-09-25