Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1FPW callsign genealogy
Currently held by Williams III, Frederick P
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 W1FPW's current licensee, walking backwards.
- Williams III, Frederick PMAgranted 2018-03-29cancelled 2018-04-24
Successor callsigns
Callsigns held now by people who previously held W1FPW.
No current licensee on record previously held this callsign.