Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1PY callsign genealogy
Currently held by Knowles, Daniel 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 AC1PY's current licensee, walking backwards.
- Knowles, Daniel JCTgranted 2023-03-07cancelled 2023-09-18
Successor callsigns
Callsigns held now by people who previously held AC1PY.
No current licensee on record previously held this callsign.