Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
AIS vessel SF9441 - show graphs
Callsign:
MMSI number: 563066660
Vessel class: Pleasure (37)
Location: 1°18.04' N 103°55.57' E - locator OJ11XH12DD - show map
5.3 miles East bearing 82° from Singapore, Singapore [?]
12.3 miles South bearing 164° from Kampung Pasir Gudang Baru, Johor, Malaysia
16.3 miles Southeast bearing 134° from Johor Bahru, Johor, Malaysia
Last position: 2025-02-03 19:18:00 EST (2d 12h49m ago)
2025-02-04 08:18:00 +08 local time at Singapore, Singapore [?]
Course: 251° – heading 511°
Speed: 17 MPH
Last path: >ais via S60AK
Positions stored: 422
Stations near current position of SF9441 - show more
callsign distance last heard - EST      callsign distance last heard - EST
563079010352.0 yards 209°2025-01-07 23:01:57 SZ18100B381.4 yards 221°2025-02-03 18:30:09
SZ 17205 D508.9 yards 56°2025-01-21 21:27:46 SZ 18370 F0.4 miles 85°2025-01-24 18:42:05
SEA FALCON 80.5 miles 151°2025-02-06 01:06:38 SF94400.5 miles 269°2025-01-31 17:59:59
JUMA0.6 miles 130°2025-02-06 08:05:41 HLBS 180.6 miles 187°2025-02-05 21:05:07
JOLLY ROWENA0.6 miles 164°2025-02-02 23:49:16 ARMANI DOLPHIN0.6 miles 189°2025-01-24 01:25:53
MARINE PROSPERITY0.6 miles 112°2025-02-06 08:05:41 SZ18298Z0.6 miles 187°2025-02-04 01:26:32
LLS 580.7 miles 188°2025-02-06 03:19:37 LCT II0.7 miles 193°2025-01-12 23:00:07
S60AK-40.7 miles 293°2025-01-11 05:54:09 SG ASHTA0.7 miles 177°2025-02-06 05:50:09
SUN 98 BPJH MC0.7 miles 217°2025-02-05 21:10:19 9V1AK-10.7 miles 291°2025-01-17 08:29:25
S60AK-10.7 miles 291°2025-02-06 08:03:45 MASTER B0.7 miles 130°2025-02-04 11:42:37
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS