Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4CHM callsign genealogy
Currently held by CUSTOMS HOUSE MUSEUM 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 W4CHM's current licensee, walking backwards.
- KI4BPXcancelledCustoms House Museum Amateur Radio ClubTNgranted 2003-07-22cancelled 2003-09-05
Successor callsigns
Callsigns held now by people who previously held W4CHM.
No current licensee on record previously held this callsign.