United States flag

RALPHUSTug · MMSI 368119180

USStopped
World map showing the last known position of RALPHUS at 29° 28.400' N, 94° 57.700' W
NSEW
Current PositionNo recent signal

RALPHUS has not broadcast an AIS position for 28 days. Its most recent report placed it in the Gulf of Mexico, at 29.4733° N, 94.9617° W, on 12 Aug 2026, 14:36 UTC. It was sailing from HARBORWALK to BREATHWIT SHIPYARD.

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Updated 27 days ago using terrestrial data
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Stopped
Current Navigational Status
0.4 kn
Speed
9.0°
/ ---
Course / Heading
0 m
Static Draught
---
Current Draught

Voyage Tracker

HARBORWALK
ATD
07:22 UTCFeb 16, 2026
BREATHWIT SHIPYARD
ETA
14:12 UTCAug 12, 2026
RALPHUS

RALPHUS

Identity

Tug
Type
United States flagUS
Flag
N/A
IMO Number
368119180
MMSI
WDL3192
Call Sign

Specifications

8 m × 4 m
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
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Dive into the fleet, port, and flag state that RALPHUS is part of.

Flag State
All US-flagged vessels
Browse every ship currently registered under the US flag, with live AIS positions.
Vessel Type
Browse all Tugs
See the global fleet of tugs tracked on MarineRadar with live AIS data.

About RALPHUS

Identity · Ownership · Class · Route

RALPHUS — Tug

RALPHUS is a tug registered under the United States of America flag.

RALPHUS route and voyage history

RALPHUS is currently on a voyage from HARBORWALK to BREATHWIT SHIPYARD with an estimated arrival on 2026-08-12T14:12:00Z. The live route and current course of RALPHUS are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

Vessels in the same class as RALPHUS can be seen in the Similar Vessels section above or in the full tug fleet at /vessel-type/tug-pilot-vessel.

Frequently Asked Questions

Where is RALPHUS right now?+
RALPHUS has not broadcast an AIS position for 28 days. The most recent broadcast placed it in the Gulf of Mexico, on 12 Aug 2026, 14:36 UTC. It was sailing from HARBORWALK to BREATHWIT SHIPYARD. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.
What are the identifiers for RALPHUS?+
RALPHUS broadcasts MMSI 368119180, with call sign WDL3192. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is RALPHUS?+
RALPHUS is classified as a tug vessel registered under the US flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full tug fleet at /vessel-type/tug-pilot-vessel and full US flag list at /flag/us.
How can I see the live position of RALPHUS?+
MarineRadar shows the latest AIS broadcast from RALPHUS above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is RALPHUS's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is RALPHUS?+
As a tug, RALPHUS sits in the same design class as the other tugs listed in the Similar Vessels section of the vessel page, or in the full tug directory at /vessel-type/tug-pilot-vessel.

RALPHUS — Key Facts

MMSI
368119180
0
Call sign
WDL3192
Vessel type
Tug
Flag state
US
Navigation status
Stopped
Current speed
0.4 knots
Course over ground
9.0°
Last known position
29.4733°, -94.9617°
Destination
BREATHWIT SHIPYARD
ETA
2026-08-12T14:12:00Z
Departure port
HARBORWALK
Actual time of departure
2026-02-16T07:22:00Z
Maximum static draught
0 m
AIS last updated
2026-08-12T14:36:00Z