Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NS3M callsign genealogy
Currently held by SCHOCKLING, DONALD 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 NS3M's current licensee, walking backwards.
- Gregerson, Matthew RPAgranted 1997-10-02cancelled 2006-06-24
Successor callsigns
Callsigns held now by people who previously held NS3M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NS3M, oldest first.
- SCHOCKLING, DONALD H PA1988-10-25 → cancelled 2000-10-26
- Gregerson, Matthew R PA2016-09-08 active