Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9RCM callsign genealogy
Currently held by MONTGOMERY, REUBEN C
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 KA9RCM's current licensee, walking backwards.
- MONTGOMERY, REUBEN CINgranted 2001-07-03cancelled 2002-10-29
Successor callsigns
Callsigns held now by people who previously held KA9RCM.
No current licensee on record previously held this callsign.