Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6ALW callsign genealogy
Currently held by LUDEMANN, FRED 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 W6ALW's current licensee, walking backwards.
- LUDEMANN, FREDERICK JCAgranted 2013-07-02cancelled 2013-07-23
Successor callsigns
Callsigns held now by people who previously held W6ALW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6ALW, oldest first.
- LUDEMANN, FRED J CA1997-07-29 → cancelled 2009-07-30
- LUDEMANN, FREDERICK J CA2024-04-03 active