Confidence: Medium · Source: FCC ULS · As of 2026-09-15
N9SDP callsign genealogy
Currently held by BONTRAGER, DARLTON L
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 N9SDP's current licensee, walking backwards.
- KB9GVRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9SDP.
- BONTRAGER, DARLTON LINgranted 2012-12-05cancelled 2025-01-28