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

WB1M callsign genealogy

Currently held by CIFRE, VINICIO

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 WB1M's current licensee, walking backwards.

  1. KC1AUEcancelled· E
    Hall, Joseph MNHgranted 2013-11-20cancelled 2014-01-24

Successor callsigns

Callsigns held now by people who previously held WB1M.

  1. W2WLDactive· E
    DIMAN, WILLIAM LNYgranted 2022-03-25
  2. WA1SCexpired· E
    CIFRE, VINICIOCTgranted 2012-01-04cancelled 2024-01-05

All historical holders

Every license row we've seen with the callsign WB1M, oldest first.

  • DIMAN, WILLIAM L NY
    2000-01-04 → cancelled 2002-06-07
  • CIFRE, VINICIO CT
    2006-03-04 → cancelled 2012-01-04
  • Hall, Joseph M NH
    2023-11-01 active
← Back to WB1M License history →