Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4NLM callsign genealogy
Currently held by McConkey, James L
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 N4NLM's current licensee, walking backwards.
- McConkey, James LTNgranted 2007-02-05cancelled 2008-08-12
Successor callsigns
Callsigns held now by people who previously held N4NLM.
- Ritchie, Cecil HTNgranted 2003-07-15cancelled 2005-09-14
All historical holders
Every license row we've seen with the callsign N4NLM, oldest first.
- Ritchie, Cecil H TN1996-01-10 → cancelled 2003-07-15
- McConkey, James L TN2018-06-09 active