Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3WAM callsign genealogy
Currently held by Mc Cullough, William A
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 K3WAM's current licensee, walking backwards.
- TESTERMAN, JOSHUAMDgranted 2024-02-03cancelled 2025-12-30
Successor callsigns
Callsigns held now by people who previously held K3WAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3WAM, oldest first.
- Mc Cullough, William A PA2012-06-07 → cancelled 2024-08-10
- TESTERMAN, JOSHUA MD2025-12-30 active