Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA4SBT callsign genealogy
Currently held by MURPHY, ROBERT
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 WA4SBT's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WA4SBT.
- MURPHY, ROBERTGAgranted 2008-09-16cancelled 2020-09-17