Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4RTH callsign genealogy
Currently held by PENNINGTON, MARGIE D
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 KC4RTH'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 KC4RTH.
- PENNINGTON, MARGIE DALgranted 2010-06-08cancelled 2022-08-30