Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1CAI callsign genealogy
Currently held by PISO, CHARLES J
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 N1CAI's current licensee, walking backwards.
- PISO, CHARLES JMAgranted 2013-01-30cancelled 2013-05-10
Successor callsigns
Callsigns held now by people who previously held N1CAI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1CAI, oldest first.
- MAC KEEN, DONALD C MA1997-03-13 → cancelled 2009-03-14
- PISO, CHARLES J VT2023-06-07 active