Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3APG callsign genealogy
Currently held by FERGUSON, DAVID
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 W3APG's current licensee, walking backwards.
- GEIGER, ARNOLD PMDgranted 2024-07-10cancelled 2024-08-13
Successor callsigns
Callsigns held now by people who previously held W3APG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3APG, oldest first.
- FERGUSON, DAVID PA1994-10-18 → cancelled 2006-10-19
- Geiger, Arnold P MD2024-08-13 active