Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N8CAL callsign genealogy
Currently held by Shindler, Calvin 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 N8CAL's current licensee, walking backwards.
- Lapinski, Christopher AMIgranted 2016-10-04cancelled 2017-08-18
Successor callsigns
Callsigns held now by people who previously held N8CAL.
- Shindler, Calvin JOHgranted 2020-06-19
All historical holders
Every license row we've seen with the callsign N8CAL, oldest first.
- Shindler, Calvin J OH1999-12-28 → cancelled 2000-08-08
- Lapinski, Christopher A MI2017-08-18 active