Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB1CH callsign genealogy
Currently held by Rosenbrock, Ann Mary
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 AB1CH's current licensee, walking backwards.
- Rosenbrock, Ann MaryVTgranted 2002-03-18cancelled 2003-03-20
Successor callsigns
Callsigns held now by people who previously held AB1CH.
No current licensee on record previously held this callsign.