Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4NL callsign genealogy
Currently held by Duffy, Jonathan R
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 AK4NL's current licensee, walking backwards.
- Duffy, Jonathan RVAgranted 2009-12-23cancelled 2011-10-17
Successor callsigns
Callsigns held now by people who previously held AK4NL.
- Duffy, Jonathan RMEgranted 2021-04-16