Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1CR callsign genealogy
Currently held by GIRARD, JOSEPH H 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 KD1CR's current licensee, walking backwards.
- RISTER, JASON JOHgranted 2014-06-24cancelled 2018-08-21
Successor callsigns
Callsigns held now by people who previously held KD1CR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD1CR, oldest first.
- GIRARD, JOSEPH H R NH2001-05-09 → cancelled 2013-08-07
- RISTER, JASON J OH2018-08-21 active