Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC2X callsign genealogy
Currently held by SPONTAK, DAVID 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 AC2X's current licensee, walking backwards.
- Sadler, Jeffrey ANJgranted 2006-04-20cancelled 2007-03-10
Successor callsigns
Callsigns held now by people who previously held AC2X.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC2X, oldest first.
- SPONTAK, DAVID J NJ1994-10-19 → cancelled 2006-10-20
- SADLER, JEFFREY A NJ2017-01-18 active