Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1RFX callsign genealogy
Currently held by Siegert, Jonathan T
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 W1RFX's current licensee, walking backwards.
- Siegert, Jonathan TINgranted 2010-11-17cancelled 2018-09-22
Successor callsigns
Callsigns held now by people who previously held W1RFX.
No current licensee on record previously held this callsign.