Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4OTN callsign genealogy
Currently held by CHRISTENSEN, ERIC H
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 W4OTN's current licensee, walking backwards.
- CHRISTENSEN, ERIC HNCgranted 2006-12-08cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held W4OTN.
- CHRISTENSEN, ERIC HMDgranted 2025-06-05