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

N6AI callsign genealogy

Currently held by PORTER, DONALD J

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 N6AI's current licensee, walking backwards.

  1. WT6Sactive· E
    HORTON, CHRISTOPHER ACAgranted 2022-08-19
  2. KB6OMIcancelled· E
    HORTON, CHRISTOPHER ACAgranted 2016-06-07cancelled 2022-08-19

Successor callsigns

Callsigns held now by people who previously held N6AI.

  1. WH7Ucancelled· E
    MC BRIDE II, WILLIAM RAZgranted 2018-07-10cancelled 2022-08-02

All historical holders

Every license row we've seen with the callsign N6AI, oldest first.

  • MC BRIDE II, WILLIAM R HI
    2017-01-31 → cancelled 2018-07-10
  • PORTER, DONALD J CA
    2020-07-31 active