Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1WSU callsign genealogy
Currently held by Greater Westfield Medical Reserve Corps
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 K1WSU's current licensee, walking backwards.
- KB1UMZcancelledGreater Westfield Medical Reserve CorpsMAgranted 2010-06-25cancelled 2013-06-01
Successor callsigns
Callsigns held now by people who previously held K1WSU.
No current licensee on record previously held this callsign.