Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0CPO callsign genealogy
Currently held by PENHALLEGON, GLENN H
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 W0CPO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0CPO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CPO, oldest first.
- PENHALLEGON, GLENN H KS1997-04-14 → cancelled 2009-04-15
- STALCUP JR, ROBERT E TN2018-04-21 active