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

K1APJ callsign genealogy

Currently held by DAY, PAULINE E

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 K1APJ's current licensee, walking backwards.

  1. WA2YKGcancelled· E
    Jarosik, Andrew PCTgranted 2005-03-29cancelled 2009-01-03

Successor callsigns

Callsigns held now by people who previously held K1APJ.

  1. W1BKUcancelled· G
    DAY, PAULINE EFLgranted 1998-12-01cancelled 2002-12-10

All historical holders

Every license row we've seen with the callsign K1APJ, oldest first.

  • JAROSIK, ANDREW P CT
    2018-10-09 active
  • DAY, PAULINE E
    → cancelled 1998-12-01