Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2JDH callsign genealogy
Currently held by REGAN, THOMAS O
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 K2JDH's current licensee, walking backwards.
- Hollinger, James DWAgranted 2021-03-24cancelled 2023-10-13
Successor callsigns
Callsigns held now by people who previously held K2JDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2JDH, oldest first.
- REGAN, THOMAS O IL2002-03-20 → cancelled 2014-03-25
- Hollinger, James D AL2023-10-13 active