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

N1YNP callsign genealogy

Currently held by Engel, Frederick N

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 N1YNP's current licensee, walking backwards.

  1. KI7MEZcancelled· T
    Engel, Frederick NMTgranted 2021-05-07cancelled 2021-11-13

Successor callsigns

Callsigns held now by people who previously held N1YNP.

  1. KI7MEZcancelled· T
    Engel, Frederick NMTgranted 2021-05-07cancelled 2021-11-13

All historical holders

Every license row we've seen with the callsign N1YNP, oldest first.

  • ROCHA JR, JOHN MA
    1997-02-11 → cancelled 2009-02-12
  • Engel, Frederick N MT
    2017-07-04 → cancelled 2021-05-07
  • Engel, Frederick N WA
    2021-11-13 active
← Back to N1YNP License history →