Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1FRL callsign genealogy
Currently held by Martin, Sue E
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 KC1FRL's current licensee, walking backwards.
- Martin, Sue EMEgranted 2016-04-25cancelled 2016-05-05
Successor callsigns
Callsigns held now by people who previously held KC1FRL.
No current licensee on record previously held this callsign.