Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4YMC callsign genealogy
Currently held by MCCAULEY, MARCUS 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 KA4YMC's current licensee, walking backwards.
- MCCAULEY, MARCUS DTNgranted 2007-02-21cancelled 2016-10-29
Successor callsigns
Callsigns held now by people who previously held KA4YMC.
No current licensee on record previously held this callsign.