Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ECP callsign genealogy
Currently held by Swenson, David W
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 K9ECP's current licensee, walking backwards.
- SWENSON, DAVID WHINgranted 2008-06-09cancelled 2015-02-21
Successor callsigns
Callsigns held now by people who previously held K9ECP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9ECP, oldest first.
- Swenson, Henry M IN2004-01-07 → cancelled 2013-07-21
- Swenson, David W IN2025-09-23 active