Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9BSD callsign genealogy
Currently held by Kreklow, Collin J
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 W9BSD's current licensee, walking backwards.
- Kreklow, Collin JWIgranted 2000-06-20cancelled 2003-08-01
Successor callsigns
Callsigns held now by people who previously held W9BSD.
No current licensee on record previously held this callsign.