Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1SQK callsign genealogy
Currently held by Shapiro, Judd L
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 K1SQK's current licensee, walking backwards.
- Shapiro, Judd LMAgranted 2009-11-13cancelled 2009-12-01
Successor callsigns
Callsigns held now by people who previously held K1SQK.
- KENWARD JR, PERCYFLgranted 2002-07-17cancelled 2014-10-15