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

N0SHU callsign genealogy

Currently held by RING, SEAN F

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 N0SHU's current licensee, walking backwards.

  1. NQ0Nactive· E
    RUMSEY, JEFFREY SMNgranted 2018-06-22
  2. N0EOScancelled· E
    RUMSEY, JEFFREY SMNgranted 2009-01-12cancelled 2018-06-22

Successor callsigns

Callsigns held now by people who previously held N0SHU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N0SHU, oldest first.

  • RING, SEAN F MO
    2012-04-03 → cancelled 2015-08-19
  • RING, CORNELIUS P MO
    2026-03-27 active