Confidence: Medium · Source: FCC ULS · As of 2026-09-15
N8SMC callsign genealogy
Currently held by Castaldi, Sharon M
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 N8SMC's current licensee, walking backwards.
- Castaldi, Sharon MMIgranted 2021-06-24cancelled 2021-07-20
Successor callsigns
Callsigns held now by people who previously held N8SMC.
- Causley, Thomas CMIgranted 2026-09-11
All historical holders
Every license row we've seen with the callsign N8SMC, oldest first.
- Causley, Thomas C MI2012-01-11 → cancelled 2016-11-26
- Castaldi, Sharon M MI2021-07-20 active