Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3WBM callsign genealogy
Currently held by McDevitt III, William B
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 W3WBM's current licensee, walking backwards.
- McDevitt III, William BPAgranted 2011-06-30cancelled 2012-11-24
Successor callsigns
Callsigns held now by people who previously held W3WBM.
No current licensee on record previously held this callsign.