Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1SPX callsign genealogy
Currently held by HARCARIK, EDWARD 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 K1SPX's current licensee, walking backwards.
- Harcarik, Edward ACTgranted 2004-10-22cancelled 2006-12-30
Successor callsigns
Callsigns held now by people who previously held K1SPX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1SPX, oldest first.
- LAVINE, MYRON L MA1994-05-24 → cancelled 2006-05-25
- HARCARIK, EDWARD A CT2016-11-03 active