Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4BP callsign genealogy
Currently held by MARTIN, REID 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 W4BP's current licensee, walking backwards.
- SWANSON, RONFLgranted 1997-03-13cancelled 2000-06-30
- KF4OHMno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4BP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4BP, oldest first.
- MARTIN, REID O FL1988-11-15 → cancelled 1998-06-09
- SWANSON, RON FL2020-07-16 active