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

W4PTY

Active

CASTILLO, AMBROSIO

Location: HOWE, TX
Class: General
Granted: 2025-07-08
Expires: 2035-07-08
Previous call: KF0NJD
FRN: 0034019398

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

Vanity availability

Held

Currently held

W4PTY is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KF0NJDcancelled· G
CASTILLO, AMBROSIOTXgranted 2023-07-25cancelled 2025-07-08

License history

0 events

No recorded events.

More vanity slots coming available

From Texas

All →

KI5OSV 2026-09-09
KJ5GTF 2026-09-09
K2UMA 2026-09-10
K9CWO 2026-09-10
KB5SLO 2026-09-10

Starting with W4

All →

W4HKO FL · 2026-09-09
W4IDI AL · 2026-09-10
W4YAU TN · 2026-09-10
W4CVH VA · 2026-09-12
W4QDZ NC · 2026-09-13

Full history → Vanity availability → Callsign genealogy →