Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7HDC callsign genealogy
Currently held by LAWRENCE, BJORN
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 N7HDC's current licensee, walking backwards.
- TREECE, GREGORY JNVgranted 2020-06-25cancelled 2026-03-17
Successor callsigns
Callsigns held now by people who previously held N7HDC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7HDC, oldest first.
- LAWRENCE, BJORN TX1998-05-19 → cancelled 2004-12-23
- TREECE, GREGORY J NV2026-03-17 active