Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4II callsign genealogy
Currently held by Los Radio Heads
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 NP4II's current licensee, walking backwards.
- WP4TZZcancelledLos Radio HeadsPRgranted 2026-06-11cancelled 2026-08-04
Successor callsigns
Callsigns held now by people who previously held NP4II.
No current licensee on record previously held this callsign.