Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1JB callsign genealogy
Currently held by Spotts, Peter N
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 KC1JB's current licensee, walking backwards.
- BERGESON, JOHN STXgranted 2020-09-14cancelled 2024-02-06
Successor callsigns
Callsigns held now by people who previously held KC1JB.
- Spotts, Peter NMAgranted 2009-12-19cancelled 2013-09-13
All historical holders
Every license row we've seen with the callsign KC1JB, oldest first.
- Spotts, Peter N MA2008-11-07 → cancelled 2009-12-19
- BERGESON, JOHN S TX2024-02-06 active