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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KT4KB callsign genealogy

Currently held by LAMBDIN, JONATHAN J

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 KT4KB's current licensee, walking backwards.

  1. KE4SLU
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KT4KB.

  1. KK5JLactive· A
    LAMBDIN, JONATHAN JARgranted 2026-05-19
← Back to KT4KB License history →