Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC0UMM callsign genealogy
Currently held by PEARMAN JR, JAMES 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 KC0UMM'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 KC0UMM.
- PEARMAN JR, JAMES RKSgranted 2015-07-21cancelled 2017-05-02