Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KN4NJO

Cancelled

Plummer, Michael J

Location: Spartanburg, SC
Class: Technician
Granted: 2018-06-21
Expires: 2028-06-21
FRN: 0027640184

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Vanity availability

Available

Available now

KN4NJO cleared its 2-year hold on 2020-07-16. Eligible for vanity application.

Last held by Plummer, Michael J (SC).

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

K8DJPactive· T
Plummer, Michael JSCgranted 2018-07-17

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 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 →