Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4NPZ callsign genealogy
Currently held by Stewart, Bobby D
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 K4NPZ's current licensee, walking backwards.
- Stewart, Bobby DGAgranted 2017-11-21cancelled 2017-12-12
Successor callsigns
Callsigns held now by people who previously held K4NPZ.
No current licensee on record previously held this callsign.