Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6LYO callsign genealogy
Currently held by SINGERMAN, DONALD H
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 N6LYO's current licensee, walking backwards.
- Lyon, Mark HMSgranted 2005-12-21cancelled 2006-06-06
Successor callsigns
Callsigns held now by people who previously held N6LYO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6LYO, oldest first.
- SINGERMAN, DONALD H CA1991-07-16 → cancelled 2003-07-18
- Lyon, Mark H DC2016-06-25 active