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

AI0F callsign genealogy

Currently held by FAGAN, JAMES 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 AI0F's current licensee, walking backwards.

  1. W0JUNcancelled· E
    Sakabe, JunCOgranted 2020-07-10cancelled 2020-08-07
  2. KF0APNcancelled· G
    Sakabe, JunCOgranted 2020-06-22cancelled 2020-07-10

Successor callsigns

Callsigns held now by people who previously held AI0F.

  1. WB0OKcancelled· E
    HARSHBARGER, THOMAS WMOgranted 2018-07-17cancelled 2018-08-04

All historical holders

Every license row we've seen with the callsign AI0F, oldest first.

  • FAGAN, JAMES R MO
    2001-02-27 → cancelled 2013-05-01
  • HARSHBARGER, THOMAS W MO
    2013-05-21 → cancelled 2018-07-17
  • Sakabe, Jun CO
    2020-08-07 active
← Back to AI0F License history →