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

NO1A callsign genealogy

Currently held by HALD III, MARK

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 NO1A's current licensee, walking backwards.

  1. N1EEMcancelled· E
    HALD III, MARKMAgranted 2008-06-25cancelled 2012-07-20

Successor callsigns

Callsigns held now by people who previously held NO1A.

  1. K4BKcancelled· E
    JAQUEZ, LUIS AFLgranted 2010-06-29cancelled 2011-12-21

All historical holders

Every license row we've seen with the callsign NO1A, oldest first.

  • LESS, FRANK L MA
    1997-10-06 → cancelled 2009-10-07
  • JAQUEZ, LUIS A FL
    2010-03-26 → cancelled 2010-06-29
  • HALD III, MARK MA
    2023-04-25 active
← Back to NO1A License history →