Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3LMM callsign genealogy
Currently held by PETRIE, JOHN T
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 K3LMM's current licensee, walking backwards.
- PETRIE, JOHN TMDgranted 2011-04-04cancelled 2011-11-01
Successor callsigns
Callsigns held now by people who previously held K3LMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3LMM, oldest first.
- GUGLIUZZA, JOSEPH V MD1996-08-29 → cancelled 2008-08-30
- PETRIE, JOHN T MD2021-12-21 active