Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1BBR callsign genealogy
Currently held by Philbrook, Matthew R
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 W1BBR's current licensee, walking backwards.
- Philbrook, Matthew RFLgranted 2018-03-01cancelled 2019-03-01
Successor callsigns
Callsigns held now by people who previously held W1BBR.
- Rowberry, Bradley BNMgranted 2016-10-29
All historical holders
Every license row we've seen with the callsign W1BBR, oldest first.
- Rowberry, Bradley B NM2010-09-14 → cancelled 2016-10-29
- Philbrook, Matthew R FL2019-03-01 active