uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N4RXJ callsign genealogy

Currently held by MAHAFFEY II, JOHN W

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 N4RXJ's current licensee, walking backwards.

  1. KD8JJWcancelled· G
    Slusher Jr, Jeffery ANCgranted 2019-02-12cancelled 2025-09-20

Successor callsigns

Callsigns held now by people who previously held N4RXJ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N4RXJ, oldest first.

  • MAHAFFEY II, JOHN W VA
    1993-04-13 → cancelled 2005-04-14
  • Slusher Jr, Jeffery A NC
    2025-09-20 active