Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8MAB callsign genealogy
Currently held by RYBARCZYK JR, NORBERT J
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 K8MAB's current licensee, walking backwards.
- RYBARCZYK JR, NORBERT JMIgranted 2007-11-20cancelled 2008-11-29
Successor callsigns
Callsigns held now by people who previously held K8MAB.
- RYBARCZYK JR, NORBERT JMIgranted 2007-11-20cancelled 2008-11-29
All historical holders
Every license row we've seen with the callsign K8MAB, oldest first.
- RYBARCZYK JR, NORBERT J MI1998-05-15 → cancelled 2007-11-20
- RYBARCZYK JR, NORBERT J MI2018-09-05 active