Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3HGP callsign genealogy
Currently held by SHNIDMAN, LOUIS
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 W3HGP's current licensee, walking backwards.
- KD3CNYcancelledHACKERS GUILD AMATEUR RADIO CLUBPAgranted 2026-02-06cancelled 2026-03-03
Successor callsigns
Callsigns held now by people who previously held W3HGP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3HGP, oldest first.
- SHNIDMAN, LOUIS MD1988-04-05 → cancelled 2000-04-06
- HACKERS GUILD AMATEUR RADIO CLUB PA2026-03-03 active