Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0BPU callsign genealogy
Currently held by Spurr, William
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 N0BPU's current licensee, walking backwards.
- Spurr, WilliamIAgranted 2025-02-11cancelled 2025-07-01
Successor callsigns
Callsigns held now by people who previously held N0BPU.
- HAMER, THOMAS BIAgranted 1999-01-07cancelled 2011-01-08
All historical holders
Every license row we've seen with the callsign N0BPU, oldest first.
- Spurr, William IA2025-07-01 active
- HAMER, THOMAS B— → cancelled 1999-01-07