Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4CTL callsign genealogy
Currently held by PUTNAM, 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 N4CTL's current licensee, walking backwards.
- PUTNAM, DAVID RFLgranted 2008-08-20cancelled 2016-09-20
Successor callsigns
Callsigns held now by people who previously held N4CTL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CTL, oldest first.
- WALKER SR, JAMES A MS2005-04-21 → cancelled 2016-08-18
- PUTNAM, DAVID R FL2026-06-24 active