Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K1CJR callsign genealogy
Currently held by Bourgeois, Mark S
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 K1CJR's current licensee, walking backwards.
- Bourgeois, Mark SMEgranted 2014-08-12cancelled 2014-09-16
Successor callsigns
Callsigns held now by people who previously held K1CJR.
- Bourgeois, Mark SMEgranted 2024-10-05