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 TB.BS ALLIANCE - show graphs
Callsign: YDA3317
MMSI number: 525022259
Vessel class: Tug (52)
Location: 1°17.73' N 103°43.66' E - locator OJ11UH70HW - show map
8.5 miles West bearing 273° from Singapore, Singapore [?]
11.9 miles South bearing 190° from Johor Bahru, Johor, Malaysia
Last position: 2025-01-03 17:42:29 EST (12h2m ago)
2025-01-04 06:42:29 +08 local time at Singapore, Singapore [?]
Course: 152.4° – heading 511°
Speed: 4 MPH
Last path: YDA3317>ais via 9V1LW
Positions stored: 128
Stations near current position of TB.BS ALLIANCE - show more
callsign distance last heard - EST      callsign distance last heard - EST
TIAN SAN CARRIER 694.4 yards 331°2024-12-30 04:46:12 QSA PT 3124.9 yards 280°2025-01-04 05:39:58
PILOT GP33148.2 yards 284°2024-12-30 19:09:57 H493156.6 yards 9°2024-12-07 18:52:22
PENGUIN PRINCESS248.1 yards 236°2024-12-09 22:29:44 T JUNGFRAU251.2 yards 242°2024-12-06 13:39:49
YEW CHOON 9274.1 yards 23°2024-12-29 18:18:59 WINSTAR GRACE316.4 yards 61°2025-01-02 07:08:31
525009342329.4 yards 158°2024-12-29 17:53:14 SOL 1009331.3 yards 303°2024-12-31 21:37:51
JHAO FONG NO188342.2 yards 103°2024-12-12 20:40:55 MARINA ABLE343.2 yards 333°2024-12-09 23:55:21
LUMINOUS348.5 yards 139°2025-01-03 18:32:51 CRYSTAL ACTEON365.4 yards 90°2024-12-28 03:54:12
MARINA AMBER365.9 yards 129°2025-01-03 17:56:10 TROPICAL DOLPHIN370.2 yards 339°2025-01-04 05:44:21
MEGA DAYA 21389.4 yards 334°2024-12-21 02:32:59 BAYSHORE396.8 yards 79°2025-01-03 08:53:04
NEW BL COD407.1 yards 266°2024-12-27 00:53:43 OCEANIC DOLPHIN416.1 yards 341°2024-12-26 06:28:01
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