Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K3AU callsign genealogy
Currently held by ALTER, JAMES M
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 K3AU's current licensee, walking backwards.
- KB3KZVcancelledSouth Shore Amateur Radio ClubMDgranted 2004-04-12cancelled 2004-05-01
Successor callsigns
Callsigns held now by people who previously held K3AU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3AU, oldest first.
- ALTER, JAMES M PA1992-03-31 → cancelled 2004-04-01
- South Shore Amateur Radio Club MD2024-02-29 active