Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4YBM callsign genealogy
Currently held by MORGAN, KATHERINE Y
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 K4YBM's current licensee, walking backwards.
- MORGAN, KATHERINE YGAgranted 2011-09-08cancelled 2015-03-13
Successor callsigns
Callsigns held now by people who previously held K4YBM.
No current licensee on record previously held this callsign.