Towing vessel · Flag CO
ALFRED B4
ALFRED B4 is a towing vessel (MMSI 730154742, flag CO). Its last AIS position was reported on 24 Oct 2026 at 07:22 UTC near Port of Barranquilla.
Last position
Position of MMSI 730154742, rounded to 0.01°; see the exact live position and the last 3 days on the live map.
Vessel details
| Name | ALFRED B4 |
|---|---|
| IMO number | – |
| MMSI | 730154742 |
| Call sign | – |
| Type | Towing vessel |
| Flag | CO (from the MMSI country code) |
| Length × beam | 14 m × 6 m |
| Highest reported draught | – |
| Estimated deadweight | – |
| Destination as broadcast | – |
| Seen in AIS | 23 Oct 2026 – 24 Oct 2026 (last 30 days) |
Port calls
No port calls detected in the last 60 days.
ALFRED B4 in the API
The full track, every port call and the live position of ALFRED B4 are available through the AIS Trail API. A free key covers the last 7 days of history; paid plans cover the last 12 months, and Pro and Business add live positions.
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
"https://api.aistrail.com/v1/vessels/730154742/track?from=2026-10-18&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
"https://api.aistrail.com/v1/vessels/730154742/port-calls?from=2026-10-18"Sources
- Open Waters AIS (https://openwaters.io/ais/), with each event's own source credit (mostly AISHub (https://www.aishub.net) and aisstream.io). Per-event source licence; not merged
Flags come from the MMSI country code, deadweight and size class are estimates from AIS dimensions, port calls are detected by AIS Trail from position reports. All sources and licences: Data sources.
Not for navigation. AIS data can be missing, delayed or wrong; do not use it for navigation, collision avoidance, search and rescue or any other safety-of-life purpose.
