Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1DZR callsign genealogy
Currently held by SERRA JR, JOSEPH P
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 K1DZR's current licensee, walking backwards.
- Kilpatrick, Christopher SSCgranted 2021-02-16cancelled 2021-03-09
Successor callsigns
Callsigns held now by people who previously held K1DZR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1DZR, oldest first.
- SERRA JR, JOSEPH P MA2007-10-11 → cancelled 2019-11-15
- Kilpatrick, Christopher S SC2021-03-09 active