Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4OPY callsign genealogy
Currently held by FRIEDSAM, HERMAN 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 WA4OPY's current licensee, walking backwards.
- Johnson, Michael DGAgranted 2023-11-10cancelled 2023-12-01
Successor callsigns
Callsigns held now by people who previously held WA4OPY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4OPY, oldest first.
- FRIEDSAM, HERMAN A GA1997-03-05 → cancelled 2009-03-06
- Johnson, Michael D GA2023-12-01 active