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

W4OIO

Cancelled

Velasquez, Joseph B

Location: Lincoln, CA
Class: General
Granted: 2024-03-12
Expires: 2034-03-12
Previous call: K6ATM
FRN: 0006876874

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Vanity availability

522d

Available on 2028-02-14

W4OIO cancelled on 2026-02-14. Hold ends in 522 days.

Last held by Velasquez, Joseph B (CA).

Confidence: High

Cancelled licenses begin the 2-year hold immediately on the cancellation date, so this is the firm release date per §97.19.

Callsign genealogy

Previously held by current licensee

K6ATMactive· G
Kim, Jay HCAgranted 2026-05-02
K6AHLcancelled· G
Kim, Jay HCAgranted 2022-11-29cancelled 2026-05-02
KN6WGIcancelled· G
Kim, Jay HCAgranted 2022-10-25cancelled 2022-11-29

Prior holders later became

W6OIOactive· G
Velasquez, Joseph BCAgranted 2026-02-14

License history

0 events

No recorded events.

More vanity slots coming available

From California

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

Starting with W4

W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13
W4CKI AL · 2026-09-17

Full history → Vanity availability → Callsign genealogy →