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

KH6JRC callsign genealogy

Currently held by CLAPPER, JAMES D

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 KH6JRC's current licensee, walking backwards.

  1. KC6FGWcancelled· G
    CLAPPER, JAMES DCAgranted 2018-04-07cancelled 2018-08-11

Successor callsigns

Callsigns held now by people who previously held KH6JRC.

  1. KC6FGWcancelled· G
    CLAPPER, JAMES DCAgranted 2018-04-07cancelled 2018-08-11
  2. KC6FGWcancelled· G
    CLAPPER, JAMES DCAgranted 2009-07-17cancelled 2010-07-20

All historical holders

Every license row we've seen with the callsign KH6JRC, oldest first.

  • CLAPPER, JAMES D CA
    2008-12-17 → cancelled 2009-07-17
  • CLAPPER, JAMES D CA
    2010-07-20 → cancelled 2018-04-07
  • CLAPPER, JAMES D CA
    2018-08-11 active