Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MMB callsign genealogy
Currently held by Barrett, Michael 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 K3MMB's current licensee, walking backwards.
- Barrett, Michael MMDgranted 2003-03-11cancelled 2003-05-28
Successor callsigns
Callsigns held now by people who previously held K3MMB.
No current licensee on record previously held this callsign.