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

WA1B callsign genealogy

Currently held by WOODY, WILLIAM K

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 WA1B's current licensee, walking backwards.

  1. KO5TIcancelled· E
    Hennighausen, KonstantinosMAgranted 2018-12-04cancelled 2021-02-23
  2. AC1GJcancelled· E
    Hennighausen, KonstantinosMAgranted 2018-10-17cancelled 2018-12-04
  3. KC1KJUcancelled· E
    Hennighausen, KonstantinosMAgranted 2018-10-17cancelled 2018-11-13

Successor callsigns

Callsigns held now by people who previously held WA1B.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WA1B, oldest first.

  • WOODY, WILLIAM K AZ
    2009-09-14 → cancelled 2019-01-29
  • Hennighausen, Konstantinos MA
    2021-02-23 active
← Back to WA1B License history →