Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7R callsign genealogy
Currently held by KALIVODA, MICHAEL P
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 AB7R's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB7R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB7R, oldest first.
- KALIVODA, MICHAEL P WA1987-11-03 → cancelled 1999-11-04
- FISCHER, GREGORY ID2020-03-05 active