Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SOE callsign genealogy
Currently held by GROGAN, SHAUN W
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 W4SOE's current licensee, walking backwards.
- GROGAN, SHAUN WTNgranted 2010-05-19cancelled 2017-12-05
Successor callsigns
Callsigns held now by people who previously held W4SOE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SOE, oldest first.
- WATKINS SR, ROBERT W FL1987-08-18 → cancelled 1999-08-20
- GROGAN, ANTHONY D SC2003-08-07 → cancelled 2015-08-08
- GROGAN, SHAUN W SC2017-12-05 active