Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9BX callsign genealogy
Currently held by AHLGRIMM, MICHAEL
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 W9BX's current licensee, walking backwards.
- AHLGRIMM, MICHAELWAgranted 1994-12-12cancelled 2000-01-15
Successor callsigns
Callsigns held now by people who previously held W9BX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9BX, oldest first.
- AHLGRIMM, MICHAEL VT2019-10-22 active
- ——