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

K4OPS

Cancelled

SHILLING, HAROLD T

Location: MANASSAS, VA
Class: Technician
Granted: 2002-08-13
Expires: 2012-08-13
Previous call: KF4KMD
FRN: 0003416914

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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for K4OPS. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.

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

KN4VYRcancelled· T
Costanzo, Louis JVAgranted 2019-07-25cancelled 2019-08-20

Prior holders later became

KK4JJVcancelled· T
SHILLING, HAROLD TVAgranted 2012-05-18cancelled 2012-11-10

License history

0 events

No recorded events.

More vanity slots coming available

From Virginia

All →

KB3ZEV 2026-09-09
KK4LMC 2026-09-09
KK4LMF 2026-09-09
KK4LMX 2026-09-10
KQ4GPU 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 →