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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

AJ6CA callsign genealogy

Currently held by Swetech, Jay C

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 AJ6CA's current licensee, walking backwards.

  1. W6LZJcancelled· E
    Swetech, Jay CCAgranted 2019-03-12cancelled 2020-08-01
  2. KM6VRKcancelled· G
    Swetech, Jay CCAgranted 2018-09-14cancelled 2019-03-12

Successor callsigns

Callsigns held now by people who previously held AJ6CA.

  1. WU6Pactive· E
    Li, NianfengCAgranted 2018-04-10

All historical holders

Every license row we've seen with the callsign AJ6CA, oldest first.

  • Li, Nianfeng CA
    2018-03-20 → cancelled 2018-04-10
  • Swetech, Jay C CA
    2020-08-01 active