Confidence: Medium · Source: FCC ULS · As of 2026-09-10

KN6ISB

Cancelled

Castellano, Alfonso

Location: Anaheim, CA
Class: General
Granted: 2020-05-01
Expires: 2030-05-01
FRN: 0029532801

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

Vanity availability

Available

Available now

KN6ISB cleared its 2-year hold on 2022-07-10. Eligible for vanity application.

Last held by Castellano, Alfonso (CA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Prior holders later became

W6EACactive· G
Castellano, AlfonsoCAgranted 2020-07-10

License history

0 events

No recorded events.

More vanity slots coming available

From California

All →

AC2TX 2026-09-10
K6DJM 2026-09-10
KC6JGS 2026-09-10
KC6KGL 2026-09-10
KC6VEU 2026-09-10

Starting with KN6

All →

KN6AU CA · 2026-09-21
KN6AW LA · 2026-09-21
KN6DOQ CA · 2026-09-27
KN6KEY CA · 2026-09-27
KN6WSE CA · 2026-09-27

Full history → Vanity availability → Callsign genealogy →