Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1DJK callsign genealogy
Currently held by Keander, Christopher 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 W1DJK's current licensee, walking backwards.
- Keander, Christopher JORgranted 2004-11-16cancelled 2010-04-13
Successor callsigns
Callsigns held now by people who previously held W1DJK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1DJK, oldest first.
- Keander, Lawrence E MA2004-04-19 → cancelled 2010-02-25
- Keander, Christopher J OR2020-03-17 active