MarineRadar — Home
HubNews & TrendsForumVesselLighthousePort
Sign inDownload
Google PlayApp Store
Download
✕
HubNews & TrendsForumVesselLighthousePort
Sign in
Indonesia flag

ALFIAN 4 — Tug · IMO 9969663

IDStopped
World map showing the last known position of ALFIAN 4 at 0° 28.382' N, 127° 59.743' E
NSEW
Current PositionNo recent signal

ALFIAN 4 has not broadcast an AIS position for 8 days. Its most recent report placed it in the North Pacific Ocean, at 0.4730° N, 127.9957° E, on 31 Aug 2026, 06:44 UTC. It was sailing from PULANG PISAU to PULANG PISAU.

Show in Map
Updated 8 days ago using terrestrial data
Live Satellite · latest position

See where ALFIAN 4 is now

Terrestrial data is 8 days old. Use a satellite credit for the latest position, updated minutes ago — satellites track vessels in the deep sea.

$0.99 for 1 satellite position

Get satellite position · $0.99Save up to 60% with credit packs →
Stopped
Current Navigational Status
0.3 kn
Speed
294.0°
/ 511°
Course / Heading
4 m
Static Draught
4 m
Current Draught

Voyage Tracker

ATD
01:06 UTCAug 28, 2026
ETA
13:09 UTCAug 30, 2026
ALFIAN 4

ALFIAN 4

Identity

Tug
Type
Indonesia flagID
Flag
9969663
IMO Number
525501486
MMSI
YDC4563
Call Sign

Specifications

N/A
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
Live tracking · 50,000+ mariners

Track ALFIAN 4 live on MarineRadar

Real-time AIS positions, voyage history, and arrival alerts for ALFIAN 4 — straight from your phone.

Live AIS positionsVoyage historyArrival alerts
Get the App

4.6 ★ · 18,000 reviews

Similar Vessels

Nearby vessels of the same type

Tug

VICTORY VI

Tug

Tug

OMIDAN 3

Tug

SAR

RNLI LIFEBOAT 16 19

SAR

Dive into the fleet, port, and flag state that ALFIAN 4 is part of.

Flag State
All ID-flagged vessels
Browse every ship currently registered under the ID flag, with live AIS positions.
Vessel Type
Browse all Tugs
See the global fleet of tugs tracked on MarineRadar with live AIS data.
Departure Port
Port of PULANG PISAU
Port traffic, arrivals and live vessel positions for PULANG PISAU (IDPPS).

About ALFIAN 4

Identity · Ownership · Class · Route

ALFIAN 4 — Tug

ALFIAN 4 is a tug registered under the Indonesia flag.

ALFIAN 4 route and voyage history

ALFIAN 4 is currently on a voyage from PULANG PISAU to PULANG PISAU with an estimated arrival on 2026-08-30T13:09:00Z. The live route and current course of ALFIAN 4 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 ALFIAN 4 can be seen in the Similar Vessels section above or in the full tug fleet at /vessel-type/tug-pilot-vessel.

  • MMSI: 525501486
  • IMO: 9969663
  • Call sign: YDC4563
  • Vessel type: Tug
  • Flag state: Indonesia

Frequently Asked Questions

Where is ALFIAN 4 right now?+
ALFIAN 4 has not broadcast an AIS position for 8 days. The most recent broadcast placed it in the North Pacific Ocean, on 31 Aug 2026, 06:44 UTC. It was sailing from PULANG PISAU to PULANG PISAU. 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 ALFIAN 4?+
ALFIAN 4 broadcasts MMSI 525501486 and is registered as IMO 9969663, with call sign YDC4563. 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 ALFIAN 4?+
ALFIAN 4 is classified as a tug vessel registered under the ID 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 ID flag list at /flag/id.
How can I see the live position of ALFIAN 4?+
MarineRadar shows the latest AIS broadcast from ALFIAN 4 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 ALFIAN 4'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 ALFIAN 4?+
As a tug, ALFIAN 4 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.

ALFIAN 4 — Key Facts

MMSI
525501486
IMO number
9969663
Call sign
YDC4563
Vessel type
Tug
Flag state
ID
Navigation status
Stopped
Current speed
0.3 knots
Course over ground
294.0°
Heading
511°
Last known position
0.4730°, 127.9957°
Destination
PULANG PISAU
ETA
2026-08-30T13:09:00Z
Departure port
PULANG PISAU
Actual time of departure
2026-08-28T01:06:00Z
Current draught
4 m
Maximum static draught
4 m
Dead weight
0 t
AIS last updated
2026-08-31T06:44:00Z