Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ADL callsign genealogy
Currently held by ADLER, ANDREW 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 N4ADL's current licensee, walking backwards.
- Adler, Andrew JKYgranted 2009-01-21cancelled 2009-02-10
Successor callsigns
Callsigns held now by people who previously held N4ADL.
No current licensee on record previously held this callsign.