Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3CAL callsign genealogy
Currently held by Spreitzer, Calvin 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 N3CAL's current licensee, walking backwards.
- SPREITZER, CALVIN JMDgranted 1994-09-16cancelled 2001-10-05
Successor callsigns
Callsigns held now by people who previously held N3CAL.
No current licensee on record previously held this callsign.