Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WCU callsign genealogy
Currently held by GREENARCH, LARRY K
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 W4WCU's current licensee, walking backwards.
- KN4TWRcancelledCATAMOUNT ALUMNI RADIO GROUPNCgranted 2019-04-12cancelled 2019-05-17
Successor callsigns
Callsigns held now by people who previously held W4WCU.
- GREENARCH, LARRY KNCgranted 2006-09-29cancelled 2007-09-05
All historical holders
Every license row we've seen with the callsign W4WCU, oldest first.
- GREENARCH, LARRY K NC2003-10-11 → cancelled 2006-09-29
- CATAMOUNT ALUMNI RADIO GROUP NC2019-05-17 active