Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4LTM callsign genealogy
Currently held by GRIMM, NORMAN V
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 KR4LTM's current licensee, walking backwards.
- GRIMM, NORMAN VVAgranted 2024-03-08cancelled 2026-04-27
Successor callsigns
Callsigns held now by people who previously held KR4LTM.
- GRIMM, NORMAN VVAgranted 2026-05-15