Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC1ABC callsign genealogy
Currently held by Abend, Brian
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 KC1ABC's current licensee, walking backwards.
- Abend, BrianMAgranted 2024-12-24cancelled 2025-06-21
Successor callsigns
Callsigns held now by people who previously held KC1ABC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC1ABC, oldest first.
- STAROBIN, SAMUEL R MA2013-05-31 → cancelled 2025-06-03
- Abend, Brian MA2025-06-21 active