Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NK4M callsign genealogy
Currently held by Hathaway, Timothy 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 NK4M's current licensee, walking backwards.
- Hathaway, Timothy RVAgranted 2018-02-09cancelled 2019-03-05
Successor callsigns
Callsigns held now by people who previously held NK4M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NK4M, oldest first.
- Marcum, Arthur D KY2007-01-08 → cancelled 2019-02-13
- Hathaway, Timothy R NV2019-03-05 active