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

N5EF callsign genealogy

Currently held by Frisbie, Bradley E

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 N5EF's current licensee, walking backwards.

  1. N5JSLactive· E
    Tomlinson, Robert BIDgranted 2019-10-16
  2. KA5JSLcancelled· G
    Tomlinson, Robert BTXgranted 2007-11-06cancelled 2009-10-17

Successor callsigns

Callsigns held now by people who previously held N5EF.

  1. W5CVactive· E
    FOWLER JR, EUGENE FTXgranted 2016-09-14
  2. W5ZLcancelled· E
    LYONS, GARY OWAgranted 1999-12-31cancelled 2000-12-27

All historical holders

Every license row we've seen with the callsign N5EF, oldest first.

  • LYONS, GARY O TX
    1999-02-10 → cancelled 1999-12-31
  • Frisbie, Bradley E OK
    2022-02-01 active
← Back to N5EF License history →