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

KR4FY

Cancelled

Patterson, Robert C

Location: Winchester, CA
Class: Amateur Extra
Granted: 2003-12-19
Expires: 2013-12-19
FRN: 0005508114

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Vanity availability

Available

Available now

KR4FY cleared its 2-year hold on 2006-03-13. Eligible for vanity application.

Last held by Patterson, Robert C (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

KQ1Zactive· E
Patterson, Robert CNCgranted 2024-09-17

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 KR4

All →

KR4AAB AL · 2027-01-11
KR4ABQ FL · 2027-01-17
KR4BBR FL · 2027-01-17
KR4ACS VA · 2027-01-18
KR4ADZ FL · 2027-01-22

Full history → Vanity availability → Callsign genealogy →