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

N0LF callsign genealogy

Currently held by SHEFFIELD, MARK E

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 N0LF's current licensee, walking backwards.

  1. KF0HXFcancelled
    The Radio Active GroupNEgranted 2022-02-14cancelled 2022-03-05

Successor callsigns

Callsigns held now by people who previously held N0LF.

  1. K4LFLactive· E
    SHEFFIELD, MARK ENCgranted 2020-02-14

All historical holders

Every license row we've seen with the callsign N0LF, oldest first.

  • SHEFFIELD, MARK E NC
    2010-09-11 → cancelled 2020-02-14
  • The Radio Active Group NE
    2022-03-05 active
← Back to N0LF License history →