Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CDH callsign genealogy
Currently held by Cretin Derham Hall High School Ham 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 W0CDH's current licensee, walking backwards.
- KF0HOWcancelledCretin Derham Hall High School Ham Radio ClubMNgranted 2022-01-04cancelled 2022-01-29
Successor callsigns
Callsigns held now by people who previously held W0CDH.
No current licensee on record previously held this callsign.