Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB1ETR callsign genealogy
Currently held by KRULL SR, MICHAEL 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 WB1ETR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WB1ETR.
- KRULL SR, MICHAEL JCTgranted 2008-04-08cancelled 2009-12-29