Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1LRO callsign genealogy
Currently held by MARCUS, DAVID R
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 N1LRO's current licensee, walking backwards.
- Howard, Grace AAZgranted 2013-07-22cancelled 2013-09-04
Successor callsigns
Callsigns held now by people who previously held N1LRO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1LRO, oldest first.
- MARCUS, DAVID R CT1999-05-05 → cancelled 2004-07-22
- Howard, Grace A AZ2023-08-04 active