Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0PH callsign genealogy
Currently held by JARMUSZKIEWCZ, CHARLES A
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 AD0PH's current licensee, walking backwards.
- JARMUSZKIEWCZ, CHARLES AMOgranted 2014-12-16cancelled 2015-05-21
Successor callsigns
Callsigns held now by people who previously held AD0PH.
No current licensee on record previously held this callsign.