Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1AS callsign genealogy
Currently held by SHERMAN, ALAN R
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 K1AS's current licensee, walking backwards.
- Kim, Cheol-MinCTgranted 2007-07-20cancelled 2008-05-23
Successor callsigns
Callsigns held now by people who previously held K1AS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1AS, oldest first.
- SHERMAN, ALAN R CT1997-08-11 → cancelled 2000-04-01
- Kim, Cheol-Min CA2018-02-27 active