Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA3UDW callsign genealogy
Currently held by CHAMBERS JR, 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 WA3UDW's current licensee, walking backwards.
- CHAMBERS JR, JOHN FPAgranted 2014-01-22cancelled 2016-03-11
Successor callsigns
Callsigns held now by people who previously held WA3UDW.
No current licensee on record previously held this callsign.