Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7LI callsign genealogy
Currently held by Sigsbee, Christopher C
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 AD7LI's current licensee, walking backwards.
- Sigsbee, Christopher CORgranted 2001-02-03cancelled 2007-03-12
Successor callsigns
Callsigns held now by people who previously held AD7LI.
- Sigsbee, Christopher CNYgranted 2023-02-02