Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5YJB callsign genealogy
Currently held by Chapman, William 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 W5YJB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W5YJB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5YJB, oldest first.
- Chapman, William B TX2016-12-08 → cancelled 2022-10-24
- CHAPMAN, CHRISTOPHER R TX2024-10-12 active