Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7DEN callsign genealogy
Currently held by CROSSLIN, WILLIAM 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 W7DEN's current licensee, walking backwards.
- KE0QJVcancelledDenver International Airport Amateur Radio Communications Team (DEN-ARCT)COgranted 2018-03-05cancelled 2018-03-24
Successor callsigns
Callsigns held now by people who previously held W7DEN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7DEN, oldest first.
- CROSSLIN, WILLIAM J CA2005-01-04 → cancelled 2017-01-11
- Denver International Airport Amateur Radio Communications Team (DEN-ARCT) CO2018-03-24 active