Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC3HMB callsign genealogy
Currently held by McLaughlin, Mary T
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 KC3HMB's current licensee, walking backwards.
- McLaughlin, Mary TPAgranted 2022-09-08cancelled 2022-09-27
Successor callsigns
Callsigns held now by people who previously held KC3HMB.
- W3NFBactiveNational Federation Of The Blind Amateur Radio DivisionMDgranted 2026-07-31
All historical holders
Every license row we've seen with the callsign KC3HMB, oldest first.
- National Federation Of The Blind Amateur Radio Division MD2016-07-15 → cancelled 2016-08-05
- McLaughlin, Mary T PA2022-09-27 active