Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SLD callsign genealogy
Currently held by BOWEN, PENNOCK B
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 W4SLD's current licensee, walking backwards.
- Butte, Joseph HFLgranted 2009-10-20cancelled 2009-12-01
Successor callsigns
Callsigns held now by people who previously held W4SLD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SLD, oldest first.
- BOWEN, PENNOCK B FL1997-02-24 → cancelled 2009-02-25
- BUTTE, JOSEPH H FL2019-09-03 active