Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6ABY callsign genealogy
Currently held by HARRINGTON, HAROLD 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 K6ABY's current licensee, walking backwards.
- Greenberg, Jeffrey ACAgranted 2019-09-17cancelled 2019-11-15
Successor callsigns
Callsigns held now by people who previously held K6ABY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6ABY, oldest first.
- HARRINGTON, HAROLD J CA2005-08-31 → cancelled 2017-11-29
- Greenberg, Jeffrey A CA2019-11-15 active