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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N4YLC callsign genealogy

Currently held by SHUPING JR, JOHN R

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 N4YLC's current licensee, walking backwards.

  1. KC4KSR
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4YLC.

No current licensee on record previously held this callsign.

← Back to N4YLC License history →