Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7WRX callsign genealogy
Currently held by Carlson, Joseph A
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 N7WRX's current licensee, walking backwards.
- Nielsen, Karl ACOgranted 2012-04-27cancelled 2014-05-16
Successor callsigns
Callsigns held now by people who previously held N7WRX.
- Carlson, Joseph AWAgranted 2021-03-10
All historical holders
Every license row we've seen with the callsign N7WRX, oldest first.
- Carlson, Joseph A WA2009-04-14 → cancelled 2011-03-08
- Nielsen, Karl A CO2024-06-29 active