Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1RDP callsign genealogy
Currently held by DENSMORE, HAROLD C
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 W1RDP's current licensee, walking backwards.
- Pearson, Ryne DCAgranted 2008-04-29cancelled 2008-05-17
Successor callsigns
Callsigns held now by people who previously held W1RDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1RDP, oldest first.
- DENSMORE, HAROLD C NH1990-11-13 → cancelled 2002-11-14
- Pearson, Ryne D CA2018-03-20 active