Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3APK callsign genealogy
Currently held by ROSCOE, WILLIAM
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 W3APK's current licensee, walking backwards.
- Moehlenpah, Jonathan JMOgranted 2021-04-15cancelled 2021-06-26
Successor callsigns
Callsigns held now by people who previously held W3APK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3APK, oldest first.
- ROSCOE, WILLIAM PA2005-02-11 → cancelled 2017-05-04
- Moehlenpah, Jonathan J MO2021-06-26 active