Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0SPW callsign genealogy
Currently held by SWOPE, CLARENCE 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 N0SPW's current licensee, walking backwards.
- SWOPE, CLARENCE AMOgranted 2005-06-23cancelled 2012-06-08
Successor callsigns
Callsigns held now by people who previously held N0SPW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0SPW, oldest first.
- SWOPE, ANDREW C MO2003-08-11 → cancelled 2010-06-17
- SWOPE, CLARENCE A AZ2023-09-16 active