Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1CSM callsign genealogy
Currently held by Longwill, Steven A
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 K1CSM's current licensee, walking backwards.
- Longwill, Steven ALAgranted 2016-11-21cancelled 2017-05-16
Successor callsigns
Callsigns held now by people who previously held K1CSM.
No current licensee on record previously held this callsign.