Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NS4ZM callsign genealogy
Currently held by Pennington, Aaron 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 NS4ZM's current licensee, walking backwards.
- Pennington, Aaron DWAgranted 2014-01-28cancelled 2014-02-15
Successor callsigns
Callsigns held now by people who previously held NS4ZM.
No current licensee on record previously held this callsign.