Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1BCB callsign genealogy
Currently held by Shirrell, Michael D
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 W1BCB's current licensee, walking backwards.
- Shirrell, Michael DTXgranted 2021-07-15cancelled 2025-09-12
Successor callsigns
Callsigns held now by people who previously held W1BCB.
All historical holders
Every license row we've seen with the callsign W1BCB, oldest first.
- Baker, Brian C AZ2001-04-03 → cancelled 2009-08-15
- Shirrell, Michael D TX2025-09-12 → cancelled 2025-12-09