Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1JAH callsign genealogy
Currently held by Hartzell, John A
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 W1JAH's current licensee, walking backwards.
- Hartzell, John ACTgranted 2002-06-03cancelled 2002-06-25
Successor callsigns
Callsigns held now by people who previously held W1JAH.
No current licensee on record previously held this callsign.