Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SPK callsign genealogy
Currently held by CAMERON, 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 N4SPK's current licensee, walking backwards.
- KRAUSE, SEAN PTNgranted 2005-08-23cancelled 2008-08-16
Successor callsigns
Callsigns held now by people who previously held N4SPK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SPK, oldest first.
- CAMERON, JOHN J FL1988-04-19 → cancelled 2000-04-20
- KRAUSE, SEAN P TN2018-07-31 active