uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N5CTO callsign genealogy

Currently held by DUGGAN, FREDERIC 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 N5CTO's current licensee, walking backwards.

  1. KC5JADcancelled· T
    DAVIS, JOSHUA ATXgranted 2021-09-08cancelled 2022-04-23
  2. KI5RGTcancelled· T
    DAVIS, JOSHUA ATXgranted 2021-08-19cancelled 2021-09-08

Successor callsigns

Callsigns held now by people who previously held N5CTO.

  1. W4EQEactive· G
    DUGGAN, FREDERIC RARgranted 2018-06-19
  2. KF5ULPcancelled· T
    Stevens, Stormy RARgranted 2007-05-22cancelled 2013-04-09
  3. W4EQEcancelled· G
    DUGGAN, FREDERIC RARgranted 2004-08-07cancelled 2013-03-19

All historical holders

Every license row we've seen with the callsign N5CTO, oldest first.

  • DUGGAN, FREDERIC R AR
    1999-11-17 → cancelled 2004-08-07
  • Stevens, Stormy R AR
    2007-05-22 → cancelled 2013-03-19
  • DUGGAN, FREDERIC R AR
    2013-04-09 → cancelled 2018-06-19
  • DAVIS, JOSHUA TX
    2022-04-23 active
← Back to N5CTO License history →