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

KT4K

Active

BRETT, MARTIN A

Location: GREENVILLE, SC
Class: Amateur Extra
Granted: 2020-02-20
Expires: 2030-04-07
Previous call: NY6Z
FRN: 0002120210

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Vanity availability

Held

Currently held

KT4K is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

NY6Zactive· E
LONG, SETH CCAgranted 2025-07-29
K7ADBcancelled· E
LONG, SETH CCAgranted 2024-08-17cancelled 2025-07-29
KQ6IKcancelled· A
LONG, SETH CNVgranted 1996-08-09cancelled 2003-12-02

License history

0 events

No recorded events.

More vanity slots coming available

From South Carolina

All →

KQ4URH 2026-09-10
KG4VBH 2026-09-12
KK4LOZ 2026-09-13
KK4LPA 2026-09-13
KK4LPE 2026-09-13

Starting with KT4

All →

KT4HY TN · 2026-10-08
KT4UV NC · 2026-11-15
KT4RTD AL · 2026-12-28
KT4ZM FL · 2027-01-03
KT4OE NC · 2027-01-04

Full history → Vanity availability → Callsign genealogy →