Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0SAW callsign genealogy
Currently held by ARMSTRONG, ROBERT V
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 W0SAW's current licensee, walking backwards.
- miller, seanCOgranted 2021-03-01cancelled 2021-03-23
Successor callsigns
Callsigns held now by people who previously held W0SAW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0SAW, oldest first.
- ARMSTRONG, ROBERT V IA2006-11-16 → cancelled 2019-02-13
- miller, sean CO2021-03-23 active