Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA4TH callsign genealogy
Currently held by HERING, THOMAS C
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 NA4TH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NA4TH.
No current licensee on record previously held this callsign.