Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB0P callsign genealogy
Currently held by Treadaway, William R
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 NB0P's current licensee, walking backwards.
- Treadaway, William RCOgranted 2008-10-14cancelled 2009-12-15
Successor callsigns
Callsigns held now by people who previously held NB0P.
- KEITHAHN, STEPHEN TMOgranted 2017-07-06