Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SPZ callsign genealogy
Currently held by GREENE II, FRANKLIN 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 K4SPZ'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 K4SPZ.
- GREENE II, FRANKLIN TVAgranted 2017-07-13