Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7TMK callsign genealogy
Currently held by HARRIS, JOHN D
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 N7TMK's current licensee, walking backwards.
- Harris, John DWYgranted 2004-09-28cancelled 2007-08-29
Successor callsigns
Callsigns held now by people who previously held N7TMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7TMK, oldest first.
- CROW, JOHN W OR1994-08-09 → cancelled 2005-05-19
- HARRIS, JOHN D WY2017-07-06 active