Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4HKM callsign genealogy
Currently held by CAYER, MORRIS
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 W4HKM's current licensee, walking backwards.
- MONROE, HEATHERFLgranted 2019-06-26cancelled 2019-08-20
Successor callsigns
Callsigns held now by people who previously held W4HKM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4HKM, oldest first.
- CAYER, MORRIS FL1991-02-05 → cancelled 2003-02-06
- MONROE, HEATHER FL2019-08-20 active