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

NW1S callsign genealogy

Currently held by Baldonado, Brendan R

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 NW1S's current licensee, walking backwards.

  1. AC1KIcancelled· E
    BALDONADO, BRENDAN RMAgranted 2020-06-09cancelled 2020-12-15
  2. KC1NEFcancelled· E
    BALDONADO, BRENDAN RMAgranted 2020-06-09cancelled 2020-11-04

Successor callsigns

Callsigns held now by people who previously held NW1S.

  1. NW7Tactive· E
    Elliott, Randall BORgranted 2026-07-07
  2. K1WRactive· E
    WENDLER, WOLFGANG F KMEgranted 2018-11-24

All historical holders

Every license row we've seen with the callsign NW1S, oldest first.

  • Elliott, Randall B OR
    2016-04-06 → cancelled 2016-09-27
  • WENDLER, WOLFGANG F K ME
    2018-10-16 → cancelled 2018-11-24
  • Baldonado, Brendan R MA
    2020-12-15 active
← Back to NW1S License history →