Confidence: Medium · Source: FCC ULS · As of 2026-09-11
N3ISC callsign genealogy
Currently held by HORSEY, ELMER 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 N3ISC's current licensee, walking backwards.
- Clavner, Ira SPAgranted 2013-11-20cancelled 2019-09-04
Successor callsigns
Callsigns held now by people who previously held N3ISC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3ISC, oldest first.
- HORSEY, ELMER A MD2000-09-01 → cancelled 2012-11-28
- Clavner, Ira S PA2019-09-04 active