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

KN4SGC

Cancelled

FREDERICKS, JOHN W

Location: JOHNSON CITY, TN
Class: General
Granted: 2019-02-11
Expires: 2029-02-11
FRN: 0028056323

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Vanity availability

Available

Available now

KN4SGC cleared its 2-year hold on 2021-03-04. Eligible for vanity application.

Last held by FREDERICKS, JOHN W (TN).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Prior holders later became

K2JWFactive· G
FREDERICKS, JOHN WTNgranted 2019-03-05

License history

0 events

No recorded events.

More vanity slots coming available

From Tennessee

All →

KG4TWC 2026-09-10
KK4LNE 2026-09-10
KK4LNK 2026-09-10
KQ4TPH 2026-09-10
KQ4UUA 2026-09-10

Starting with KN4

All →

KN4ZVG FL · 2026-09-17
KN4LGK GA · 2026-09-21
KN4VXC NC · 2026-09-21
KN4RPM VA · 2026-10-07
KN4GAM GA · 2026-10-12

Full history → Vanity availability → Callsign genealogy →