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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N1CT callsign genealogy

Currently held by FLOYD, MARK 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 N1CT's current licensee, walking backwards.

  1. AC1CWactive· E
    Fu, Shih-ChingMIgranted 2019-04-06
  2. KE8KRUcancelled· E
    Fu, Shih-ChingMIgranted 2018-10-11cancelled 2019-04-06

Successor callsigns

Callsigns held now by people who previously held N1CT.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N1CT, oldest first.

  • NINTZEL, KEVIN J CT
    2006-08-08 → cancelled 2014-05-06
  • FLOYD, MARK S CT
    2026-05-30 active