Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3LI callsign genealogy
Currently held by Coslo, Michael 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 N3LI's current licensee, walking backwards.
- Coslo, Michael JPAgranted 1999-10-21cancelled 2007-11-02
Successor callsigns
Callsigns held now by people who previously held N3LI.
- MC CLAMMA III, HAL SALgranted 2024-04-26
All historical holders
Every license row we've seen with the callsign N3LI, oldest first.
- MC CLAMMA III, HAL S AL2001-07-27 → cancelled 2004-07-24
- Coslo, Michael J PA2017-08-08 active