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

K4DFX

Active

Smith, Robert J

Location: ROGERSVILLE, TN
Class: Technician
Granted: 2023-04-07
Expires: 2033-04-07
Previous call: W1DFX
FRN: 0031667207

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Vanity availability

Held

Currently held

K4DFX 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

W1DFXcancelled· T
Smith, Robert JTNgranted 2021-12-17cancelled 2023-04-07
KO4VAOcancelled· T
Smith, Robert JTNgranted 2021-11-29cancelled 2021-12-17

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 K4

All →

K4HCL FL · 2026-09-09
K4CYG FL · 2026-09-10
K4LWW NC · 2026-09-10
K4ONS NC · 2026-09-10
K4YDD FL · 2026-09-10

Full history → Vanity availability → Callsign genealogy →