Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4GOV callsign genealogy
Currently held by Blair, Heath J
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 N4GOV's current licensee, walking backwards.
- Blair, Heath JTNgranted 2023-01-10cancelled 2025-06-07
Successor callsigns
Callsigns held now by people who previously held N4GOV.
- Overbay, Gary WTNgranted 2021-06-02cancelled 2023-04-07
All historical holders
Every license row we've seen with the callsign N4GOV, oldest first.
- SHULMAN, JACK J FL1997-01-15 → cancelled 2009-01-16
- Overbay, Gary W TN2020-07-28 → cancelled 2021-06-02
- Blair, Heath J TN2025-06-07 active