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 BLUE MASTER II - show graphs
Callsign: V7ZQ4
MMSI number: 538090451
IMO number: 465411
Navigational status: Under way (engine) (0)
Vessel class: Cargo (79)
Destination: NA WVB (ETA Jan19 18:00)
Location: 18°04.57' N 18°10.18' W - locator IK08VB98PG - show map
Last position: 2025-01-10 18:56:12 EST (21d 7h57m ago)
Course: 178° – heading 177°
Speed: 19 MPH
Dimensions: length 200 m width 30 m draught 11.0 m
Last path: V7ZQ4>ais via EA8RH-9
Positions stored: 39174
Stations near current position of BLUE MASTER II - show more
callsign distance last heard - EST      callsign distance last heard - EST
CROWN JADE5.1 miles 26°2025-01-29 22:46:14 PEGASOS11.4 miles 86°2025-01-27 16:54:26
MONTELAURA11.6 miles 57°2025-01-29 21:19:14 AQUARIUS14.1 miles 111°2025-01-11 15:45:15
AFRICAN INSPIRATION14.8 miles 354°2025-01-09 18:48:09 BEAST15.7 miles 323°2025-01-11 01:11:16
SIFNOS15.9 miles 81°2025-01-29 22:21:14 TURQUOISE ACE16.5 miles 119°2025-01-09 16:23:09
SEABONI17.0 miles 111°2025-01-27 06:11:23 XIN LIAN YUN GANG17.4 miles 15°2025-01-15 17:38:44
MANILA MAERSK17.6 miles 38°2025-01-09 21:28:09 CASCADE SPIRIT20.9 miles 324°2025-01-29 22:49:14
UHL FUSION22.1 miles 44°2025-01-09 16:28:09 MSC HELENA III23.3 miles 112°2025-01-09 18:56:09
AL ZUBARA25.9 miles 44°2025-01-11 01:20:15 MAPLE RISING30.4 miles 103°2025-01-27 07:31:23
MERSINI34.4 miles 109°2025-01-27 05:06:23 AURETTE A36.2 miles 73°2025-01-10 20:05:12
JPO VENUS38.5 miles 275°2025-01-29 22:17:14
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