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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

NU4DE callsign genealogy

Currently held by MC CLANAHAN, MICHAEL S

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 NU4DE's current licensee, walking backwards.

  1. WA2ZYEcancelled· A
    BLACKFORD, RAYMOND WGAgranted 2009-01-29cancelled 2017-02-04

Successor callsigns

Callsigns held now by people who previously held NU4DE.

  1. K0MSMactive· A
    MCCLANAHAN, MICHAEL SIAgranted 2018-06-14

All historical holders

Every license row we've seen with the callsign NU4DE, oldest first.

  • MC CLANAHAN, MICHAEL S IA
    2000-07-04 → cancelled 2008-06-14
  • BLACKFORD, RAYMOND W GA
    2017-02-04 active