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

KB3ONC

Cancelled

CALLAHAN, CONOR A

Location: San Francisco, CA
Class: Amateur Extra
Granted: 2017-10-24
Expires: 2027-10-24
FRN: 0016072688

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

Vanity availability

Available

Available now

KB3ONC cleared its 2-year hold on 2021-07-08. Eligible for vanity application.

Last held by CALLAHAN, CONOR A (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

AJ6KKcancelled· E
CALLAHAN, CONOR ACOgranted 2017-10-24cancelled 2021-03-27

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 KB3

All →

KB3HBB PA · 2026-09-10
KB3ZFA PA · 2026-09-10
KB3ZFB PA · 2026-09-10
KB3ZFD PA · 2026-09-11
KB3ZFE PA · 2026-09-13

Full history → Vanity availability → Callsign genealogy →