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

KF5SOU

Cancelled

Castillo, Arthur R

Location: Amarillo, TX
Class: Amateur Extra
Granted: 2012-11-05
Expires: 2022-11-05
FRN: 0022095947

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Vanity availability

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KF5SOU cleared its 2-year hold on 2019-01-10. Eligible for vanity application.

Last held by Castillo, Arthur R (TX).

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

K5PMactive· E
Castillo, Arthur RTXgranted 2017-01-10

License history

0 events

No recorded events.

More vanity slots coming available

From Texas

All →

K2UMA 2026-09-10
K9CWO 2026-09-10
KB5SLO 2026-09-10
KD5C 2026-09-10
KD5TUE 2026-09-10

Starting with KF5

All →

KF5RXX LA · 2026-09-10
KF5RYC TX · 2026-09-10
KF5RYD AR · 2026-09-11
KF5RYE ID · 2026-09-11
KF5RYH TX · 2026-09-11

Full history → Vanity availability → Callsign genealogy →