Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7JPM callsign genealogy
Currently held by Manwaring, Jonathan P
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 KC7JPM's current licensee, walking backwards.
- Manwaring, Jonathan PWAgranted 2007-12-28cancelled 2008-01-15
Successor callsigns
Callsigns held now by people who previously held KC7JPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC7JPM, oldest first.
- ERICKSON, BRIAN R WA1995-03-22 → cancelled 2007-03-23
- Manwaring, Jonathan P WA2017-10-24 active