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

KF6CZK callsign genealogy

Currently held by CUMMINGS, DAVID 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 KF6CZK's current licensee, walking backwards.

  1. N1RRScancelled· T
    CUMMINGS, DAVID JNVgranted 2013-11-09cancelled 2019-06-18
  2. K1RRScancelled· T
    CUMMINGS, DAVID JNVgranted 2013-10-01cancelled 2013-11-09
  3. KF6RRScancelled· T
    CUMMINGS, DAVID JNVgranted 2012-09-22cancelled 2013-10-01

Successor callsigns

Callsigns held now by people who previously held KF6CZK.

  1. KF6RRScancelled· T
    CUMMINGS, DAVID JNVgranted 2012-09-22cancelled 2013-10-01

All historical holders

Every license row we've seen with the callsign KF6CZK, oldest first.

  • CUMMINGS, DAVID J NV
    2006-05-31 → cancelled 2012-09-22
  • CUMMINGS, DAVID J NV
    2019-06-18 active
← Back to KF6CZK License history →