Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1JSP callsign genealogy
Currently held by Spiro, Jeffrey 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 N1JSP's current licensee, walking backwards.
- Spiro, Jeffrey AMAgranted 2004-07-01cancelled 2004-08-14
Successor callsigns
Callsigns held now by people who previously held N1JSP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1JSP, oldest first.
- SPIRO, GEORGE W MA1992-08-04 → cancelled 1997-12-16
- Spiro, Jeffrey A NJ2025-12-05 active