Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD7MCB callsign genealogy
Currently held by Washington Ham Sams
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 KD7MCB's current licensee, walking backwards.
- Bratt, Marianne CORgranted 2010-04-22cancelled 2010-05-14
Successor callsigns
Callsigns held now by people who previously held KD7MCB.
- W7WHSexpiredWashington Ham SamsWAgranted 2011-01-27cancelled 2023-03-31
All historical holders
Every license row we've seen with the callsign KD7MCB, oldest first.
- Washington Ham Sams WA2001-03-01 → cancelled 2001-03-30
- Bratt, Marianne C OR2020-03-12 active