Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1NPS callsign genealogy
Currently held by Interior Radio Club
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 W1NPS's current licensee, walking backwards.
- KB3RWOcancelledInterior Radio ClubMDgranted 2008-11-06cancelled 2008-12-02
Successor callsigns
Callsigns held now by people who previously held W1NPS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1NPS, oldest first.
- QUACKENBUSH JR, HUGH H PA1996-08-15 → cancelled 2004-08-30
- Interior Radio Club MD2019-01-30 active