Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4YTP callsign genealogy
Currently held by Williams, Susannah T
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 W4YTP's current licensee, walking backwards.
- Williams, Susannah TTNgranted 2008-08-08cancelled 2008-08-29
Successor callsigns
Callsigns held now by people who previously held W4YTP.
No current licensee on record previously held this callsign.