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

K4OP

Active

McCarthy, John L

Location: VINE GROVE, KY
Class: Amateur Extra
Granted: 2023-03-07
Expires: 2033-04-01
Previous call: KG4VZE
FRN: 0007945942

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Vanity availability

Held

Currently held

K4OP 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

KG4VZEcancelled· E
McCarthy, John LKYgranted 2002-11-14cancelled 2003-04-01

License history

0 events

No recorded events.

More vanity slots coming available

From Kentucky

All →

KK4LMJ 2026-09-09
KD4STD 2026-09-10
KK4LMT 2026-09-10
KG4VAS 2026-09-11
KG4VAT 2026-09-11

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 →