VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 20-Sep-2026 07:42:20 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -5.8 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 19-Sep-2026 16:53:39 EDT
Status: moored
Heading: 212 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -8.5 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 18-Sep-2026 07:05:37 EDT
Status: moored
Heading: 212 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -6.2 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 17-Sep-2026 06:52:56 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -6.6 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 16-Sep-2026 06:09:55 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -7.0 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert NEW FIRST Observation
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 15-Sep-2026 23:03:17 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -6.8 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 15-Sep-2026 15:51:43 EDT
Status: moored
Heading: 212 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -8.1 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 15-Sep-2026 01:48:19 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -9.6 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 14-Sep-2026 04:36:42 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -9.2 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 13-Sep-2026 02:43:38 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -8.3 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 11-Sep-2026 23:10:50 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -7.7 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 10-Sep-2026 20:37:11 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -11.0 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 09-Sep-2026 20:03:05 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -6.3 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 08-Sep-2026 21:28:38 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -19.8 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 08-Sep-2026 02:01:41 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -12.9 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 07-Sep-2026 05:19:58 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -8.8 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 06-Sep-2026 04:15:22 EDT
Status: anchored
Speed: 0.1 kts
Heading: 42 deg
Dest.: BOSTON
Distance: 9.7 nm
Signal RSSI: -31.5 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 05-Sep-2026 08:17:14 EDT
Status: under way using engine
Speed: 15.4 kts
Heading: 49 deg
Dest.: BOSTON
Distance: 11.5 nm
Signal RSSI: -34.4 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e

VesselAlert
Name: CGC WILLIAM SPARLING
MMSI: 338926454
Callsign: NWMS
Type: Other
Flag: USA
Seen: 03-Sep-2026 05:33:08 EDT
Status: moored
Heading: 213 deg
Dest.: BOSTON
Distance: 5.5 nm
Signal RSSI: -6.6 dBFS
Ship AIS VesselAlert © kx1t - kx1t - aiscatcher - sdr-e