Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1HTR callsign genealogy
Currently held by ZIMMERMANN, LEE 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 K1HTR's current licensee, walking backwards.
- ZIMMERMANN, LEE SAZgranted 2018-02-12cancelled 2018-03-02
Successor callsigns
Callsigns held now by people who previously held K1HTR.
No current licensee on record previously held this callsign.