Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4NFN callsign genealogy
Currently held by Linthicum Sr, Michael
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 KK4NFN's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4NFN.
- Linthicum Sr, MichaelTNgranted 2023-03-21