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

K4OSS

Cancelled

Ross, Charles W

Location: Rio Rancho, NM
Class: Amateur Extra
Granted: 2015-12-01
Expires: 2026-01-10
Previous call: KF4OSS
FRN: 0004442067

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

Vanity availability

Unknown

Status unknown

No vanity-slot record on file for K4OSS. 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

KQ4PJGcancelled· T
Smith, Joshua AGAgranted 2024-03-05cancelled 2025-01-24

Prior holders later became

NZ5Ucancelled· E
Ross, Charles WNMgranted 2020-01-24cancelled 2020-06-01

License history

0 events

No recorded events.

More vanity slots coming available

From New Mexico

All →

N2QDD 2026-09-09
KJ5HOI 2026-09-10
KF5RYP 2026-09-11
KF5RYQ 2026-09-11
K5SSR 2026-09-13

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 →