Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3MBC callsign genealogy
Currently held by COUGHLIN, M
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 W3MBC's current licensee, walking backwards.
- COUGHLIN, MICHAEL BMDgranted 2014-09-08cancelled 2016-01-19
Successor callsigns
Callsigns held now by people who previously held W3MBC.
- COUGHLIN, MMDgranted 2020-03-07