Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4NRG callsign genealogy
Currently held by WHEELER, CHRISTOPHER J
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 W4NRG's current licensee, walking backwards.
- WHEELER, CHRISTOPHER JMDgranted 2020-05-13cancelled 2020-06-02
Successor callsigns
Callsigns held now by people who previously held W4NRG.
- Krenz, Jeffrey SGAgranted 2016-12-28cancelled 2017-08-12
All historical holders
Every license row we've seen with the callsign W4NRG, oldest first.
- DUPREE JR, LOUIS J NC2000-10-04 → cancelled 2013-01-01
- Krenz, Jeffrey S GA2015-10-23 → cancelled 2016-12-28
- WHEELER, CHRISTOPHER J MD2020-06-02 active