Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT9K callsign genealogy
Currently held by HERTENSTEIN, JAMES R
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 WT9K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT9K.
No current licensee on record previously held this callsign.