Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD9CPH callsign genealogy
Currently held by Emerson, Keith 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 KD9CPH's current licensee, walking backwards.
- Emerson, Keith DFLgranted 2020-10-20cancelled 2020-12-04
Successor callsigns
Callsigns held now by people who previously held KD9CPH.
- Emerson, Keith DFLgranted 2020-10-20cancelled 2020-12-04
- Emerson, Keith DFLgranted 2019-10-27cancelled 2019-11-19
- Emerson, Keith DFLgranted 2018-11-14cancelled 2019-02-22
- Emerson, Keith DINgranted 2017-09-15cancelled 2017-10-11
- Emerson, KeithINgranted 2016-10-21cancelled 2016-12-23
- emerson, keith DFLgranted 2015-11-17cancelled 2016-01-05
All historical holders
Every license row we've seen with the callsign KD9CPH, oldest first.
- Emerson, Keith D FL2014-11-25 → cancelled 2015-11-17
- Emerson, Keith D FL2016-01-05 → cancelled 2016-10-21
- Emerson, Keith D IN2016-12-23 → cancelled 2017-09-15
- Emerson, Keith D FL2017-10-11 → cancelled 2018-11-14
- Emerson, Keith D FL2019-02-22 → cancelled 2019-10-27
- Emerson, Keith D FL2019-11-19 → cancelled 2020-10-20
- Emerson, Keith D IL2020-12-04 active