Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4EMZ callsign genealogy
Currently held by Martin, Jeffrey P
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 W4EMZ's current licensee, walking backwards.
- Martin, Jeffrey PTNgranted 2006-04-05cancelled 2014-07-11
Successor callsigns
Callsigns held now by people who previously held W4EMZ.
No current licensee on record previously held this callsign.