ONE
Container Tracking
ONE was formed from the container arms of NYK, MOL and K Line, so its boxes still carry all three legacies. Enter a container, bill of lading or booking number for the latest carrier and terminal milestones.
What a ONE tracking number looks like
The lookup above accepts any of these in the same field. If one returns nothing, try another. Carriers release milestone data against different identifiers at different stages.
Container number
4 letters + 7 digits (11 characters)
ONEU1234567Standard ISO 6346. ONEY is not valid here: it is a SCAC and is not registered as a container owner code.
Bill of lading number
Alphanumeric, no publicly documented format
ONEYABCD12345678ONE publishes no B/L specification. Enter the number exactly as printed rather than trying to match a pattern.
Booking number
Alphanumeric
ABCD12345678Accepted in the same field as container and B/L numbers.
ONE container prefixes
These owner codes are registered to Ocean Network Express Pte. Ltd. in the BIC ISO 6346 register. Containers moving under a ONE booking may also carry a leasing company's prefix. A leased box is still your shipment, the prefix just does not identify the carrier.
How to track a ONE shipment
- 1
Find your container or BL number
It is printed on your bill of lading, your booking confirmation, or on the container door itself. Any of the three works in the search box above.
- 2
ONE is already selected
Because you are on the ONE page, the carrier dropdown is filled in for you. If you actually need a different line, change it. The selection is not locked.
- 3
Enter the number and press Track
Type it exactly as printed. Spaces and dashes are fine, but a mistyped letter will return nothing, since the check digit at the end only validates against the correct serial.
- 4
Read the milestone timeline
You will see terminal and vessel events from origin gate-in through to empty return, plus the vessel and voyage your box is actually on.
You can also check ONE's own portal directly at ONE cargo tracking . The advantage of tracking here is keeping several carriers on one screen instead of one portal per line.
About ONE
Ocean Network Express is the youngest of the major container lines and the only one created deliberately rather than by accumulation. In 2016 Japan’s three container carriers (NYK Line, Mitsui O.S.K. Lines and Kawasaki Kisen Kaisha) agreed to merge their container divisions into a single joint venture. The company was established that year, began sales activity in late 2017, and started carrying cargo on 1 April 2018.
The operating company is headquartered in Singapore, with a holding company in Tokyo. It sits in the Premier Alliance on the main east–west trades and is instantly recognisable for painting its ships magenta, which was a deliberate branding decision to establish a new identity quickly.
The three-parent origin is what shows up in tracking. ONE registered its own prefixes and inherited MOL’s, but NYK and K Line kept ownership of some containers, so boxes stencilled NYKU, KKFU and KKTU still move in ONE service today.
ONE tracking: what to check first
ONEY is not a container prefix. Check this before anything else. ONEY is ONE’s SCAC, used for customs and EDI. Query it against the BIC container owner-code register and you get a 404: it is not registered as a container owner at all. Any tracking site showing ONEY1234567 as an example container number is publishing an invalid number, and any validator built from that list will accept numbers that cannot exist.
MOLU does not exist either. It appears on aggregator lists because MOL was a founding parent, but it is not registered. If your paperwork genuinely shows MOLU, re-read it: it is almost certainly MOAU, MOEU, MOFU or MOTU.
A NYK or K Line prefix is still a ONE shipment. NYKU, KKFU and KKTU are registered to the parent companies rather than to ONE, but the containers are in ONE service. Do not go looking for a separate NYK tracking system; NYK’s container line no longer exists independently.
ONE’s Asia–Middle East services reach Pakistan through Southeast Asian and Gulf hubs. Expect a transshipment leg, and expect the timeline to go quiet between discharge at the hub and loading onto the connecting vessel.
What each ONE tracking status means
Ocean carriers share the same terminal and vessel event vocabulary, so these milestones read the same whichever line you are tracking.
Gate in
The container passed through the terminal gate at the origin port and is now in the terminal's custody, waiting to be loaded.
Loaded on vessel
The box was lifted onto the ship. This is the milestone that fixes your shipment to a specific vessel and voyage number.
Vessel departure
The ship has sailed from the origin port. Transit time is measured from here, and it is the point most ETA calculations are anchored to.
Transshipment
The container was discharged at an intermediate hub and will be reloaded onto a second vessel. Most delays originate here rather than at origin.
Discharged
The container came off the ship at the destination port. Free time and demurrage clocks typically start from this event.
Gate out
The container left the terminal on a truck or rail wagon. Once this fires, the terminal's storage charges stop and the haulier's clock starts.
Empty return
The unpacked container was returned to the carrier's nominated depot. This closes the shipment and stops any per-diem detention charges.
Where ONE shipments usually move
ONE tracking questions
Is ONEY a container prefix?
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No. ONEY is ONE's SCAC, the four-letter identifier used on customs and EDI filings. It returns nothing in the BIC container owner-code register, so ONEY1234567 is not a valid container number. Several tracking sites list it as a prefix, which is wrong and will break any number validation built on it.
Why do ONE containers say NYK or K Line?
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Because ONE was created from the container divisions of NYK, MOL and K Line, and the parent companies kept ownership of some containers. NYKU is registered to NYK Line, and KKFU and KKTU to Kawasaki Kisen Kaisha. Those boxes are in ONE service and track as ONE shipments. The prefix just names the owner.
Which container prefixes does ONE actually own?
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ONEU, MOAU, MOFU, MOEU and MOTU, all registered to Ocean Network Express Pte. Ltd. in Singapore. The MO codes came across from MOL. NYKU, KKFU and KKTU are legacy parent-company codes you will still see in service.
Is MOLU a valid ONE prefix?
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No. MOLU is not registered in the BIC container owner-code register at all. It appears on aggregator lists because MOL was one of ONE's founding parents, but it is not a valid container prefix and will never resolve.
When was ONE founded?
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The joint venture was established in 2016, corporate and sales activity began in October 2017, and ONE started carrying cargo on 1 April 2018. All three dates get quoted as the founding date depending on the source.
Why is my ONE number not found?
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First check you are not searching ONEY as a container prefix. After that, the usual causes apply: a booking reference with no movement events released yet, a transcription error, or a shipment that has closed and been retired from the system.
Does Maalbardaar charge for ONE tracking?
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No. Tracking is included with a free Maalbardaar account, which also lets you keep shipments across several carriers on one dashboard instead of checking each carrier's portal separately.
Every carrier on one dashboard.
Stop checking ONE's portal separately from everyone else's. Track your whole book of shipments in one place.
Not shipping with ONE?
Track any of these lines from the same dashboard, or use the general tracking page if your carrier is not listed.
Ocean carriers
Air cargo
Maalbardaar is an independent logistics technology platform and is not affiliated with, endorsed by, or sponsored by Ocean Network Express Pte. Ltd.. "ONE" and all related marks are trademarks of their respective owners and are used here for identification purposes only. For official information, visit the carrier's own website . Carrier data sources: Prefixes confirmed individually against the BIC ISO 6346 owner-code register, all registered to Ocean Network Express Pte. Ltd., Singapore. ONEY returns 404 on the register: it is a SCAC only, not a container prefix. MOLU is not registered at all despite being widely listed. HQ address from the BIC registrant record; joint venture established 2016, began trading 1 April 2018.