Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1DHP callsign genealogy
Currently held by KLAHNE, RICHARD M
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 N1DHP's current licensee, walking backwards.
- Parlee, Derek HMEgranted 2013-10-24cancelled 2014-04-18
Successor callsigns
Callsigns held now by people who previously held N1DHP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1DHP, oldest first.
- KLAHNE, RICHARD M MA1996-07-16 → cancelled 2008-07-17
- PARLEE, DEREK H ME2024-03-07 active