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 DREDGE 55 - show graphs
Map loading...
Callsign: WDB4250
MMSI number: 366896390
IMO number: 101368
Navigational status: Restricted manoeuvrability (3)
Vessel class: Dredging/underwater operations (33)
Destination: (ETA ***00 24:60)
Location: 39°24.81' N 76°01.88' W - locator FM19XJ69FF - show map - static map
6.5 miles Southeast bearing 125° from Aberdeen Proving Ground, Harford County, Maryland, United States [?]
10.0 miles Southeast bearing 113° from Perryman, Harford County, Maryland, United States
32.2 miles East bearing 74° from Baltimore, City of Baltimore, Maryland, United States
59.2 miles Southwest bearing 231° from Philadelphia, Philadelphia County, Pennsylvania, United States
Last position: 2018-02-02 16:38:13 EST (170d 6h18m ago)
2018-02-02 16:38:13 EST local time at Aberdeen Proving Ground, United States [?]
Course: 261° – heading 511°
Dimensions: length 94 m width 33 m draught 3.0 m
Last path: WDB4250>ais via AIS-CK
Positions stored: 32723
Stations near current position of DREDGE 55 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
N3DOU-14.0 miles 203°2018-07-22 23:49:52 N3DOU-94.1 miles 203°2018-07-21 15:49:40
EW87877.1 miles 98°2018-07-22 23:55:59 EW50497.5 miles 116°2018-07-22 23:45:45
W3BW-58.7 miles 112°2018-07-22 23:51:04 KC3REX-59.1 miles 8°2018-07-12 19:12:11
K3CF-19.2 miles 48°2018-07-22 23:49:00 147.375-K9.6 miles 198°2018-07-22 23:49:27
N3OBP-99.7 miles 342°2018-07-19 17:09:20 KN3Q-R10.4 miles 305°2018-07-22 23:55:38
KN3Q10.4 miles 305°2018-07-22 23:43:25 AC0LP-910.8 miles 314°2018-07-22 18:50:19
N3OBQ-511.2 miles 349°2018-07-11 17:30:25 N3XJT-111.4 miles 16°2018-07-22 23:37:23
N3RQP-R12.0 miles 292°2018-07-22 23:53:05 N3CNJ-N12.0 miles 292°2018-06-24 11:10:14
WB1GNL12.4 miles 195°2018-07-13 17:39:59 W3YR-912.6 miles 292°2018-06-24 00:21:42
KARS-NET-13.2 miles 170°2018-07-17 20:51:33 KARS-NET_13.2 miles 170°2018-07-17 19:58:32
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.
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