Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3HB callsign genealogy
Currently held by Chotkowski, Michael A
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 N3HB's current licensee, walking backwards.
- Chotkowski, Michael ACAgranted 2019-06-21cancelled 2021-07-17
Successor callsigns
Callsigns held now by people who previously held N3HB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3HB, oldest first.
- BLACKBURN, HUGH L PA2009-05-05 → cancelled 2021-06-29
- Chotkowski, Michael A CA2021-07-17 active