Port Call Arrivals: Turn ETAs Into a Sales Call Plan

You find vessel arrivals for sales by reading two data layers together: published ETA (estimated time of arrival, the time a vessel or its agent expects it at the port) and live AIS (the Automatic Identification System, which broadcasts a ship's position and identity). The ETA tells you which port call to work; AIS tells you whether the window is still open.

Most suppliers do one or the other. They watch a tracker for a berthing time, then call the agent once the ship is already alongside. By then the chandlery list, the bunker stem and the repair specification are usually fixed. This guide covers how to read arrivals data day to day, what an ETA change does to the sales window, and how to turn a list into a call plan.

How do you find vessel arrivals at a port for sales?

Build a daily arrivals list for your target ports, then qualify each row by vessel type, previous port, owner and manager before you contact anyone. A port call is a stop a vessel makes to load or unload cargo, take on supplies or let passengers go ashore, as Hellenic Shipping News described in October 2026. For a supplier, it is a dated buying event with a named ship and a named manager behind it.

Work the list in four passes:

1. Arrivals window. Pull vessels expected in the next 72 hours and vessels already at anchor or alongside. The first group is your outreach list; the second is your recovery list.
2. Vessel type and cargo. A VLCC lifting crude needs a different supplier set from a 1,800 TEU feeder or a handysize bulker. Filter before you read further.
3. Company behind the ship. Identify the registered owner, the technical manager and the charterer. The DOC holder (the company holding the Document of Compliance for the ship's safety management) is often the manager, not the owner.
4. Decision-maker by role. Technical superintendent for repair and spares, purchasing superintendent for stores, port operations for agency and bunkers.

Why ETA data is less certain than it looks

An ETA is a forecast, and research on vessel arrival prediction shows why suppliers should treat it as a range rather than a time. A 2022 study in the Flexible Services and Manufacturing Journal modelled robust berth scheduling using machine learning for vessel arrival time prediction, accounting for uncertainty from cross wind and sea current (Springer). The authors built dynamic time buffers whose length depends on the estimated forecast reliability. In plain terms, even terminal operators plan around arrival uncertainty.

Trajectory prediction has improved, but it is still prediction. A 2021 paper in IEEE Transactions on Aerospace and Electronic Systems used encoder-decoder recurrent neural networks trained on historical AIS data to predict vessel trajectories several hours ahead (IEEE). Useful for spotting a late ship; not a substitute for a call to the agent.

Ports are also becoming more data-connected. A 2023 review in IEEE Access examined digital twins for ports, derived from smart city and supply chain twinning experience, and found port implementations still in their infancy (IEEE Access). Until that matures, the supplier's own daily routine does the work.

What an ETA change means for your sales window

An ETA change moves the buying moment, and the direction of the change decides whether you gain or lose time. Treat every revision as a signal, not an error.

• ETA slips by 12 to 48 hours. The vessel is likely slow-steaming or waiting for a berth. You gain a day for a pre-arrival call, but the agent may re-sequence the port call. Confirm the new window before you promise a delivery slot.
• ETA pulls forward. The window shrinks. Move the call to the same day and lead with the one item the ship cannot sail without.
• ETA goes vague or disappears. The port call may be cancelled, combined with another port or shifted to a different terminal. Stop outreach until the agent confirms.

Congestion and routing changes drive many of these revisions. Gulf congestion has been visible in recent months: Fujairah held 28% of waiting bulkers, as reported in October 2026 (Gulf congestion and waiting bulkers at Fujairah). A vessel waiting off Fujairah still has a crew, a bunker requirement and a stores list.

What the wider market is telling you about arrivals

Trade flows and fleet changes shift which port calls appear on your list, and the trade press gives you the early signal. Saudi maritime and logistics leaders used the Saudi Maritime and Logistics Congress in Jeddah in October 2026 to call for stronger partnerships and connected transport networks (Seatrade Maritime News). More connected networks mean more predictable port calls, which helps a supplier planning a week ahead.

Listings and fleet moves also change who you call. Splash247 reported in October 2026 that Greek owner Danaos is exploring a carve-out of its large-bulker business, while handysize specialist Cetus Maritime has hired three banks for a proposed Euronext Growth Oslo float (Splash247). A new listed bulker entity usually means a new technical management structure, and new names on the purchasing side.

Regulatory changes can remove a port call from your list entirely. Splash247 reported in October 2026 that the US Coast Guard imposed additional security conditions on commercial vessels arriving in American waters after calling at Somali ports (Splash247). If a ship's previous port triggers extra conditions, the agent's workload changes and the pre-arrival paperwork grows.

How to turn an arrivals list into a call plan

A call plan is a dated sequence of contacts, not a list of phone numbers. Build it from the arrivals list, then stage it by time to arrival.

Time to arrivalWho to contactWhat to send 5 to 7 days outTechnical or purchasing superintendent at the managerCompany profile, service catalogue, indicative scope 48 to 72 hours outPort operations and the local agentConfirmed availability, delivery window, contact number 24 hours outAgent and superintendentFinal confirmation, any ETA revision AlongsideSuperintendent and vesselDelivery note, follow-up on the next port

Two habits make the plan work. First, log every ETA revision against the row so you can see which managers revise often. Second, keep a next-port column: a chandler who supplies a bulker at one port has a reason to call the same manager about the next load port. The port call windows and supplier timing guide sets out the timing logic in more detail.

Where manual arrivals reading breaks down

Reading trackers by hand works for one port and a dozen vessels. It breaks when you cover several ports, several vessel types and a team of salespeople. Data quality and integration become the constraint: a 2022 paper in the International Journal of Scientific Research in Engineering and Management described building a data processing engine that collects and queries large datasets in real time (IJSREM). That is the same problem a supplier faces when three people pull three different arrival lists.

Terminal-side automation is moving in the same direction. The Loadstar reported in October 2026 that WiseTech Global integrated its CargoWise transport management system with Dray Dog, enabling US drayage operators to automate port bookings and cut manual data entry (The Loadstar). The lesson for suppliers is simple: the port call is becoming a scheduled, data-linked event, and the sales team that reads it manually will be slower than the one that does not.

How VesselReach helps

VesselReach, built by CatalystIQ, turns the arrivals list into the call plan described above.

• Vessel intelligence for your target ports. VesselReach shows vessels near your selected ports plus scheduled and expected arrivals, which means you can start the pre-arrival call before the ship berths.
• AI company targeting and decision-maker discovery. VesselReach identifies the relevant company behind each vessel and finds the operations, procurement, technical superintendent and commercial roles to contact.
• Staged multichannel outreach with follow-ups. VesselReach runs personalised email, WhatsApp and phone outreach in sequence, with automated follow-ups and human handoff on the Android and iOS apps when a prospect replies.

Pricing is per customer and available on request. Book a VesselReach demo to see the arrivals workflow on your own ports, and a 10-day free trial follows the demo meeting.