Potomac
Tug · United States · AIS Class A
In short
Potomac (Tug, United States flag) was last seen on AIS on , under way at 10.6 kn, near New Bedford (North Atlantic Ocean). Its crew-entered AIS destination is XX XXX>US 0RYE; its reported draught is 5.2 m (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 19:22 UTC).
Current voyage: from Boston (departed Sep 30, 2026, 20:27 UTC) to XX XXX>US 0RYE
- Vessel type
- Tug
- Flag
- United States
- Year built
- —
- Gross tonnage
- 327
- Size (length × beam)
- 110 m × 32 m
- Registered owner
- —
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Last reported position
received- Position
- 41.4755° N, 70.9324° W
- Area
- North Atlantic Ocean
- StatusWhat do AIS statuses mean?
- Power-driven vessel towing astern
- Speed
- 10.6 kn
- Course
- 246°
- Heading
- 244°
Last 30 days: 10 port calls (Boston, Brooklyn/New York, Bayonne, Carteret, Newark, and New York).
Port calls are detected by Seadar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.
A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)
Try the live demo, no sign-upIdentity & particulars
- Name
- Potomac
- IMO numberWhat is an IMO number?
- 9475806
- MMSIWhat is an MMSI?
- 367558180
- Call signWhat is a call sign?
- WDG6546
- Flag
- United States
- Vessel type
- Tug
- Gross tonnageGross tonnage vs deadweight
- 327
- Length overall
- 110 m
- Beam
- 32 m
- Year built
- —
United StatesA tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.
Ownership & management
Each line shows where the fact comes from. Links backed by an identifier point to the company page.
No owner, operator or manager is recorded for this vessel yet.
Timeline
Dated events for this ship from every source Seadar holds, newest first. Each line names its source; derived items say how they were derived.
| Date | Event | Source |
|---|---|---|
| Left BostonAIS-detected | Seadar port-call detector (AIS geofence) | |
| Arrived at BostonAIS-detected | Seadar port-call detector (AIS geofence) | |
| Left Brooklyn/New YorkAIS-detected | Seadar port-call detector (AIS geofence) | |
| Arrived at Brooklyn/New YorkAIS-detected | Seadar port-call detector (AIS geofence) | |
| Left Brooklyn/New YorkAIS-detected | Seadar port-call detector (AIS geofence) | |
| Arrived at Brooklyn/New YorkAIS-detected | Seadar port-call detector (AIS geofence) |
Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.
Port calls
Two kinds of evidence, kept apart: calls Seadar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.
Detected from AIS AIS-detected
| Port | Arrived | Departed | Time in port |
|---|---|---|---|
| Boston USBOS | Sep 30, 2026, 16:48 UTC | Sep 30, 2026, 20:27 UTC | 3 h 39 min |
| Brooklyn/New York USBOY | Sep 28, 2026, 01:09 UTC | Sep 28, 2026, 21:13 UTC | 20 h 3 min |
| Brooklyn/New York USBOY | Sep 24, 2026, 09:31 UTC | Sep 24, 2026, 15:47 UTC | 6 h 16 min |
| Bayonne USBAY | Sep 24, 2026, 05:56 UTC | Sep 24, 2026, 09:25 UTC | 3 h 29 min |
| Carteret USCSF | Sep 24, 2026, 03:19 UTC | Sep 24, 2026, 04:14 UTC | 56 min |
| Newark USEWR | Sep 23, 2026, 16:28 UTC | Sep 24, 2026, 02:56 UTC | 10 h 28 min |
| Brooklyn/New York USBOY | Sep 22, 2026, 18:10 UTC | Sep 23, 2026, 16:28 UTC | 22 h 17 min |
| Bayonne USBAY | Sep 22, 2026, 12:49 UTC | Sep 22, 2026, 18:01 UTC | 5 h 13 min |
| New York USNYC | Sep 22, 2026, 01:44 UTC | Sep 22, 2026, 08:42 UTC | 6 h 58 min |
| New York USNYC | Sep 5, 2026, 12:18 UTC | Sep 7, 2026, 02:24 UTC | 38 h 6 min |
Detected by Seadar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.
Behaviour at sea Seadar-derived
Patterns Seadar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.
| When | What we observed | Confidence |
|---|---|---|
| Sep 30, 2026, 19:52 UTC | Draught change Reported draught went from 4.5 m to 5.2 m while in port at Boston. Seadar infers the ship probably loaded cargo. Method seadar.behaviour.draught_change v1 | Medium (65%) |
| Sep 28, 2026, 19:44 UTC | Draught change Reported draught went from 4.5 m to 5.2 m while in port at Brooklyn/New York. Seadar infers the ship probably loaded cargo. Method seadar.behaviour.draught_change v1 | Medium (65%) |
| Sep 24, 2026, 20:54 UTC | Draught change Reported draught went from 5.2 m to 4.5 m after leaving Brooklyn/New York. Seadar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1 | Medium (55%) |
| Sep 23, 2026, 08:21 UTC | Draught change Reported draught went from 5.2 m to 4.5 m while in port at Brooklyn/New York. Seadar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1 | Medium (65%) |
Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.
Derived from AIS positions of feeds whose terms allow display on Seadar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.
About Potomac
Built in 2007, Potomac ( ) is the seventh Patapsco-class tugboat built for Vane Brothers Company. Potomac was designed by Frank Basile of Entech & Associates, and built by Thoma-Sea Boat Builders in Houma, Louisiana.
Summary from Wikipedia, licensed CC BY-SA.
Frequently asked questions
- Where is Potomac now?
- Potomac (Tug, United States flag) was last seen on AIS on Oct 1, 2026, 19:43 UTC, under way at 10.6 kn, near New Bedford (North Atlantic Ocean). The crew-entered destination was XX XXX>US 0RYE (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 19:22 UTC). This report does not confirm the ship’s current route.
- What kind of ship is Potomac?
- Potomac is a tug sailing under the flag of United States. The vessel is 110 m long with a beam of 32 m and has a gross tonnage of 327.
- What sanctions and inspection records does Seadar hold for Potomac?
- Seadar has no matched sanctions record displayed for Potomac from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Potomac. Missing records do not establish whether the ship has been detained.
Neighbouring IMO numbers
IMO numbers are issued in sequence. These are the nearest numbers below and above this ship's that have a full Seadar profile.
Use this data
This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.
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