Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CSM callsign genealogy
Currently held by Colorado School Of Mines Amateur Radio Club
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 W0CSM's current licensee, walking backwards.
- KE0BWScancelledColorado School Of Mines Amateur Radio ClubCOgranted 2014-10-07cancelled 2014-10-28
Successor callsigns
Callsigns held now by people who previously held W0CSM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0CSM, oldest first.
- INGWERSEN, JACK D CA1995-08-15 → cancelled 2007-08-16
- Colorado School Of Mines Amateur Radio Club CO2024-10-30 active