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

KM4SY

Active

SIMPSON, DANNY G

Location: Loudon, TN
Class: Amateur Extra
Granted: 2022-10-04
Expires: 2032-11-03
Previous call: KC4JJA
FRN: 0003977279

Get notified about status changes and vanity availability for this callsign.

Vanity availability

Held

Currently held

KM4SY 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

KC4JJA
no FCC ULS record on file

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 KM4

All →

KM4AHK PA · 2026-09-21
KM4JCT GA · 2026-09-28
KM4FBY SC · 2026-10-01
KM4IS NC · 2026-10-03
KM4NGF AL · 2026-10-07

Full history → Vanity availability → Callsign genealogy →