Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KJ4NGN callsign genealogy
Currently held by Shrewsbury, Ralph D
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 KJ4NGN'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 KJ4NGN.
- Shrewsbury, Ralph DKYgranted 2009-07-28cancelled 2021-07-29