Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PDX callsign genealogy
Currently held by Lawson, Chris
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 K4PDX's current licensee, walking backwards.
- Lawson, ChrisFLgranted 2011-09-19cancelled 2012-02-17
Successor callsigns
Callsigns held now by people who previously held K4PDX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4PDX, oldest first.
- FICQUETTE, ROBERT L AL1988-06-14 → cancelled 2000-06-15
- Lawson, Chris FL2022-03-22 active