Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7JDC callsign genealogy
Currently held by Chimni, Jaideep S
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 W7JDC's current licensee, walking backwards.
- Chimni, Jaideep SWAgranted 2018-03-16cancelled 2018-04-10
Successor callsigns
Callsigns held now by people who previously held W7JDC.
- COLLIS, JOHN DTNgranted 2025-07-29
All historical holders
Every license row we've seen with the callsign W7JDC, oldest first.
- PEPPER, ROY M WA1995-02-24 → cancelled 2007-02-27
- Collis, John D TN2012-07-20 → cancelled 2015-07-10
- Chimni, Jaideep S WA2018-04-10 active