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

N0THW callsign genealogy

Currently held by DRENNAN, JOHN A

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 N0THW's current licensee, walking backwards.

  1. KA0VZF
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N0THW.

No current licensee on record previously held this callsign.

← Back to N0THW License history →