Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ERO callsign genealogy
Currently held by COOK, CARL B
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 N4ERO's current licensee, walking backwards.
- COOK, CARL BVAgranted 1998-11-16cancelled 2003-02-15
Successor callsigns
Callsigns held now by people who previously held N4ERO.
No current licensee on record previously held this callsign.