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

N1ENT callsign genealogy

Currently held by COOK, DONALD 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 N1ENT's current licensee, walking backwards.

  1. N1INTcancelled· E
    COOK, DONALD JNHgranted 2021-10-19cancelled 2022-05-24
  2. N8CMScancelled· E
    COOK, DONALD JNHgranted 2019-05-08cancelled 2021-10-19

Successor callsigns

Callsigns held now by people who previously held N1ENT.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N1ENT, oldest first.

  • HULSMAN, DOUGLAS F MA
    2006-08-15 → cancelled 2018-11-02
  • COOK, DONALD J NH
    2022-05-24 active
← Back to N1ENT License history →