Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE4MSA callsign genealogy
Currently held by ARRIOLA, KARL 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 KE4MSA'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 KE4MSA.
- ARRIOLA, KARL EWIgranted 2019-10-12cancelled 2019-10-29