Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4NDR callsign genealogy
Currently held by McCroan, Andrew D
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 K4NDR's current licensee, walking backwards.
- McCroan, Andrew DTNgranted 2022-09-22cancelled 2022-10-14
Successor callsigns
Callsigns held now by people who previously held K4NDR.
- McCroan, Andrew DTNgranted 2023-01-31cancelled 2023-03-25