Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4ZTP callsign genealogy
Currently held by Loudoun County Volunteer Rescue Squad Inc
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 KM4ZTP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KM4ZTP.
- W4LVRactiveLoudoun County Volunteer Rescue Squad IncVAgranted 2017-01-18