Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4SNG callsign genealogy
Currently held by SPEICHER JR, JAMES A
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 N4SNG's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4SNG.
- Sonnenblick, Steven JTNgranted 2018-08-14
All historical holders
Every license row we've seen with the callsign N4SNG, oldest first.
- SPEICHER JR, JAMES A NC1998-01-21 → cancelled 2010-01-22
- Sonnenblick, Steven J TN2017-09-06 → cancelled 2018-08-14