Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4EMC callsign genealogy
Currently held by CHOULOS, CHRISTOPHER J
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 WA4EMC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WA4EMC.
No current licensee on record previously held this callsign.