Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1CHK callsign genealogy
Currently held by BOYLE, JOHN 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 N1CHK's current licensee, walking backwards.
- CHAK, ALEXANDER CSCgranted 2019-06-18cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held N1CHK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1CHK, oldest first.
- BOYLE, JOHN J MA1997-05-05 → cancelled 2009-05-06
- CHAK, ALEXANDER C SC2019-07-06 active