FREDERICK HATCH

Patrol Vessel · IMO 4759245 · MMSI 338926443 · Last UTC 2026-03-04 18:04 UTC

Average Speed (60D)

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FREDERICK HATCH

Patrol Vessel

Position time: 2026-03-04 18:04 UTC

Flag: usa

Country: United States of America

IMO: 4759245

MMSI: 338926443

DWT: 66

GT: 358

Year: 2021

Call sign: NFHH

Destination is not available in AIS.

AIS refresh is typically every 4–6 hours, sometimes up to 1–2 days.

Track window: last 60 days

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Nearest known locations from geocache labels around the vessel.

Nearby locations are being calculated.

Modeled destinations using route history and peer traffic context.

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Inferred port calls from sparse AIS snapshots.

Port call inference is loading.

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How often is this page updated?

AIS updates are usually every 4–6 hours. In low-coverage areas delays up to 1–2 days are possible.

Why are some vessel fields missing?

Some AIS transponders do not transmit complete static metadata.

How accurate are destinations and port calls?

These are probabilistic model outputs and should be treated as signals, not confirmations.