Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3JMB callsign genealogy
Currently held by Baird, James 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 W3JMB's current licensee, walking backwards.
- Baird, James MMDgranted 2008-08-18cancelled 2008-09-09
Successor callsigns
Callsigns held now by people who previously held W3JMB.
All historical holders
Every license row we've seen with the callsign W3JMB, oldest first.
- Byrne Sr, Bobby J ME2004-02-10 → cancelled 2005-03-15
- Baird, James M MD2018-07-03 → cancelled 2021-07-02