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

KC3KOS

Active

STERNTHAL, JONATHAN W

Location: Warren, OH
Class: General
Granted: 2025-12-12
Expires: 2035-12-12
Previous call: N8JWS
FRN: 0027114974

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

Vanity availability

Held

Currently held

KC3KOS 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

N8JWScancelled· G
STERNTHAL, JONATHAN WOHgranted 2024-03-22cancelled 2025-12-12
KE8ZOTcancelled· G
STERNTHAL, JONATHAN WOHgranted 2022-02-12cancelled 2024-03-22
K8EVLcancelled· G
STERNTHAL, JONATHAN WOHgranted 2022-02-12cancelled 2023-11-28

Prior holders later became

N8JWScancelled· G
STERNTHAL, JONATHAN WPAgranted 2018-02-16cancelled 2019-08-13

License history

0 events

No recorded events.

More vanity slots coming available

From Ohio

All →

KC8UTB 2026-09-09
KC8UTD 2026-09-09
KD8TBN 2026-09-09
KE8VYZ 2026-09-09
KF8BEJ 2026-09-10

Starting with KC3

All →

KC3ZRU MD · 2026-09-09
KC3ZNR PA · 2026-09-10
KC3ZQJ PA · 2026-09-10
KC3MJH MD · 2026-09-13
KC3WYD PA · 2026-09-13

Full history → Vanity availability → Callsign genealogy →