Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3RAT callsign genealogy
Currently held by AUCHENBACH SR, ARTHUR W
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 K3RAT's current licensee, walking backwards.
- Ayers, Raymond KORgranted 2009-07-14cancelled 2009-08-04
Successor callsigns
Callsigns held now by people who previously held K3RAT.
- AUCHENBACH SR, ARTHUR WPAgranted 2001-05-12cancelled 2013-05-14
All historical holders
Every license row we've seen with the callsign K3RAT, oldest first.
- AUCHENBACH SR, ARTHUR W PA1999-02-10 → cancelled 2001-05-12
- Ayers, Raymond K OR2019-05-28 active