Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4H callsign genealogy
Currently held by VIZCARRONDO LEON, NOMAR
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 NP4H's current licensee, walking backwards.
- VIZCARRONDO, NOMARNYgranted 2000-07-26cancelled 2002-08-03
Successor callsigns
Callsigns held now by people who previously held NP4H.
- VIZCARRONDO, NOMARNYgranted 2000-07-26cancelled 2002-08-03
All historical holders
Every license row we've seen with the callsign NP4H, oldest first.
- VIZCARRONDO LEON, NOMAR CT1997-11-28 → cancelled 2000-07-26
- Vizcarrondo, Nomar NJ2022-05-10 active