Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4RUM callsign genealogy
Currently held by COTTON, MICHAEL 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 K4RUM's current licensee, walking backwards.
- COTTON, MICHAEL DNYgranted 1995-12-11cancelled 2004-02-03
Successor callsigns
Callsigns held now by people who previously held K4RUM.
No current licensee on record previously held this callsign.