Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3UPM callsign genealogy
Currently held by COLA, JOHN F
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 N3UPM's current licensee, walking backwards.
- Pietriyk, Kevin MPAgranted 2002-03-05cancelled 2011-05-20
Successor callsigns
Callsigns held now by people who previously held N3UPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3UPM, oldest first.
- COLA, JOHN F PA1995-03-01 → cancelled 2007-03-02
- Pietriyk, Kevin M PA2021-03-05 active