Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4GSB callsign genealogy
Currently held by Sisk II, Ray O
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 WA4GSB's current licensee, walking backwards.
- Sisk, Ray OMEgranted 2010-07-28cancelled 2012-01-04
Successor callsigns
Callsigns held now by people who previously held WA4GSB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4GSB, oldest first.
- SISK, RAY O KY2000-11-03 → cancelled 2010-01-08
- Sisk II, Ray O ME2021-12-23 active