Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3AKO callsign genealogy
Currently held by Gratton, David N
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 N3AKO's current licensee, walking backwards.
- Gratton, David NPAgranted 2017-11-15cancelled 2018-03-13
Successor callsigns
Callsigns held now by people who previously held N3AKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3AKO, oldest first.
- MULLAUER, WILLIAM C MD2000-04-22 → cancelled 2012-04-11
- Gratton, David N PA2018-03-13 active