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Indonesia flag

KRI 523 — Military Ops · IMO 4735574

IDUnder way using engine
World map showing the last known position of KRI 523 at 6° 5.551' S, 106° 52.709' E
NSEW
Current PositionNo recent signal

KRI 523 has not broadcast an AIS position for 5 days. Its most recent report placed it in the Java Sea, at 6.0925° S, 106.8785° E, on 3 Sep 2026, 10:29 UTC. It was sailing from BANJARMASIN to JAKARTA.

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Updated 5 days ago using terrestrial data
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Under way using engine
Current Navigational Status
0.0 kn
Speed
190.0°
/ 10°
Course / Heading
0 m
Static Draught
9.8 m
Current Draught

Voyage Tracker

ATD
04:52 UTCSep 1, 2026
Indonesia flag
JAKARTAIDJKT
ETA
09:51 UTCSep 3, 2026
KRI 523

KRI 523

Identity

Military Ops
Type
Indonesia flagID
Flag
4735574
IMO Number
525114045
MMSI
YCII2
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
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Dive into the fleet, port, and flag state that KRI 523 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 Military Ops
See the global fleet of military ops tracked on MarineRadar with live AIS data.
Departure Port
Port of BANJARMASIN
Port traffic, arrivals and live vessel positions for BANJARMASIN (IDBDJ).
Destination Port
Port of JAKARTA
Arrivals, berth specifications, and live vessel traffic for JAKARTA (IDJKT).

About KRI 523

Identity · Ownership · Class · Route

KRI 523 — Military Ops

KRI 523 is a military ops registered under the Indonesia flag.

KRI 523 route and voyage history

KRI 523 is currently on a voyage from BANJARMASIN to JAKARTA with an estimated arrival on 2026-09-03T09:51:00Z. The live route and current course of KRI 523 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 KRI 523 can be seen in the Similar Vessels section above or in the full military ops fleet at /vessel-type/military-special.

Frequently Asked Questions

Where is KRI 523 right now?+
KRI 523 has not broadcast an AIS position for 5 days. The most recent broadcast placed it in the Java Sea, on 3 Sep 2026, 10:29 UTC. It was sailing from BANJARMASIN to JAKARTA. 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 KRI 523?+
KRI 523 broadcasts MMSI 525114045 and is registered as IMO 4735574, with call sign YCII2. 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 KRI 523?+
KRI 523 is classified as a military ops vessel registered under the ID flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full military ops fleet at /vessel-type/military-special and full ID flag list at /flag/id.
How can I see the live position of KRI 523?+
MarineRadar shows the latest AIS broadcast from KRI 523 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 KRI 523'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 KRI 523?+
As a military ops, KRI 523 sits in the same design class as the other military opss listed in the Similar Vessels section of the vessel page, or in the full military ops directory at /vessel-type/military-special.

KRI 523 — Key Facts

MMSI
525114045
IMO number
4735574
Call sign
YCII2
Vessel type
Military Ops
Flag state
ID
Navigation status
Under way using engine
Current speed
0.0 knots
Course over ground
190.0°
Heading
10°
Last known position
-6.0925°, 106.8785°
Destination
JAKARTA
ETA
2026-09-03T09:51:00Z
Departure port
BANJARMASIN
Actual time of departure
2026-09-01T04:52:00Z
Current draught
9.8 m
Maximum static draught
0 m
Dead weight
0 t
AIS last updated
2026-09-03T10:29:00Z