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

KB7PJY callsign genealogy

Currently held by NIELSEN, JASON L

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 KB7PJY's current licensee, walking backwards.

  1. N9MSMactive· E
    NIELSEN, JASON LUTgranted 2018-08-28
  2. K1JLNcancelled· G
    Nielsen, Jason LUTgranted 2014-09-12cancelled 2018-08-28

Successor callsigns

Callsigns held now by people who previously held KB7PJY.

  1. N9MSMcancelled· G
    Nielsen, Jason LMNgranted 2004-11-30cancelled 2014-09-12
← Back to KB7PJY License history →