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

W6OWO

Active

Ammermann, Ernest Paul Henry C

Location: Sunnyvale, CA
Class: Amateur Extra
Granted: 2024-02-06
Expires: 2034-02-06
Previous call: W6MOO
FRN: 0025256348

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Vanity availability

Held

Currently held

W6OWO 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

W6MOOactive· T
Costello, JasonTXgranted 2026-06-19
KJ5QCCcancelled· T
Costello, JasonTXgranted 2026-05-27cancelled 2026-06-19

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 W6

All →

W6RNB CA · 2026-09-13
W6BBZ NV · 2026-09-17
W6DXN CA · 2026-09-17
W6SEZ CA · 2026-09-17
W6DZN CA · 2026-09-19

Full history → Vanity availability → Callsign genealogy →