SITC Container Tracking

Unlike the merger-heavy majors, SITC registers exactly one owner code: SITU. That makes misattribution rare — if the check digit passes and the prefix reads SITU, it is an SITC box. The flip side: SITC also operates plenty of leased tonnage, so cargo booked with SITC may ride in a TRLU or CAIU box that tracks by number on SITC’s site regardless of the paint.

SITC’s US-filing carrier code is 12PD — a number-letter SCAC that surprises people expecting four letters, and one reason aggregator sites mislabel SITC paperwork. On the tracker itself you search by container number or B/L number as printed on your document; if one identifier returns nothing, try the other before assuming the shipment is missing.

The cargo-track tool lives on the sitcline.com domain rather than a marketing site — bookmark it once and it loads fast, with none of the bot-protection walls the transpacific giants deploy. SITC also ships a SITCLINE mobile app for schedules and tracking. No pre-filled links: copy the validated number from above and paste it.

Not from the container. A standard dry box has no power, no radio and no satellite receiver — it is a steel case with a number painted on it, and it reports nothing about itself. Every position you see against a SITC Container Lines shipment was reported by something else: a terminal crane, a gate reader, or the ship.

A live map on a carrier’s tracking page is almost always plotting AIS, the transponder every large vessel broadcasts with its position, course and speed. That is genuinely useful at sea: it is a real position rather than a schedule, and an ETA recalculated from actual movement. It is also the ship’s position, not your box’s, and the two part company the moment the container is discharged.

On land the map goes quiet. Between the gate-out and the delivery there is no vessel to follow, and the road leg appears only as whatever events the terminal and the trucker report. A container sitting on a chassis in a yard shows the last position of a ship it left days ago. Only specialised IoT equipment reports its own location, and wherever that exists it is a paid product sold to the shipper, not something a tracking page gives away.

Almost every carrier’s US filing code is four letters — MAEU, COSU, HLCU. SITC’s is 12PD: two digits and two letters. Software that assumes four letters, and there is a lot of it, either rejects the code outright or files SITC’s paperwork under something else. It is a small thing that produces a surprising amount of confusion in third-party prefix lists.

It also means SITC has no bill-of-lading prefix in the sense the majors do. You cannot read the line off the first four characters of an SITC document the way you can with an HLCU or an EGLV number — so if you are holding paperwork and trying to work out whose it is, SITC is one of the cases where the document itself will not tell you and the booking confirmation has to.

Try the other identifier. The search takes a container number or a B/L number in the same field, and on a fresh booking the document is usually in the system before the box is. If one comes back empty, the other often does not.

SITU is the only prefix. SITC registers exactly one owner code, so a box on an SITC sailing with any other prefix is leased — and it still tracks here, because events follow the operator rather than the owner.

Check the digit. One wrong character is the most common cause of an empty result at every line, and the checker here recomputes it.

Short trades end quickly. SITC runs intra-Asia services where a voyage can be a matter of days, so the window between the last event and the shipment leaving the live system is shorter than on a transpacific run.