ONEU · NYKU · 4 more prefixes → ecomm.one-line.com
ONE Container Tracking
Track on ecomm.one-line.com →Supports pre-filled links — validate your number below and jump straight to its status.
Born from the container businesses of NYK, MOL and K Line — established July 2017, first sailings 1 April 2018 — ONE is the youngest of the majors, and its tracking stack shows it: linkable results, a clean portal, none of the legacy friction older carriers drag around. The magenta paint makes the boxes unmissable in any yard.
One historical wrinkle matters for validation: plenty of perfectly current ONE containers still wear their parents’ prefixes, so a “NYK” box in 2026 is almost certainly ONE cargo.
4 letters + 7 digits, printed on the doors
ONE prefixes: ONEU, MOAU and the three-parent legacy
Six codes tell the merger story compactly. ONEU and MOAU are the post-merger house prefixes; NYKU remains registered to NYK, while KKFU, KKTU and KLFU sit under K Line — yet all of those fleets were folded into ONE’s operations, so every one of these numbers tracks on the ONE portal. The parents survive as shipping conglomerates; their container boxes now sail magenta.
ONE B/L numbers: the ONEY format
Every bill of lading here opens with ONEY — a fourth letter that trips up tools expecting the U-suffix of equipment codes, and the giveaway that you are holding a document number rather than a box number. The same ecomm search field takes ONEY documents, bookings and container numbers, and the pre-filled link works for any of the three.
Using ecomm.one-line.com — deep links that work
Append ?trakNoParam=YOURNUMBER to the cargo-tracking URL and the result loads without touching the search form — verified in a real browser, and exactly what our checker’s button does after validating the digit. That makes ONE results bookmarkable and shareable, a convenience only Maersk and PIL match among the lines we tested. The ONE app adds push updates on the same feed.
| Container number | ✓ yes |
|---|---|
| Bill of lading (B/L) | ✓ yes |
| Booking reference | ✓ yes |
| Pre-filled link | ✓ yes |
| Mobile app | ✓ yes |
Browser-verified 2026-08-03
- Alliance
- Premier Alliance · HMM tracking, Yang Ming tracking
- Headquarters
- Singapore
- Founded
- 2017
- Fleet rank (Alphaliner, 2026)
- #6 worldwide
Headquartered operationally in Singapore and ranked sixth worldwide, ONE anchors the Premier Alliance with HMM and Yang Ming, effective 9 February 2025 — the successor arrangement after THE Alliance lost Hapag-Lloyd to Gemini.
Frequently asked questions
Are NYKU containers still trackable?
Yes — NYKU boxes came from NYK’s container fleet, which merged into ONE. Enter the number at ecomm.one-line.com (or via our pre-filled link) and events appear under ONE’s system.
What do KKFU, KKTU and KLFU stand for?
They are K Line’s registered container codes, inherited when its container arm joined the ONE merger. All three prefixes remain in circulation and track on the ONE portal.
Can I bookmark my ONE tracking result?
Yes — the trakNoParam URL parameter keeps the number in the address, so a saved link reopens the live result. Among majors, only Maersk and PIL offer equivalent deep links.
Why does my ONE bill of lading start with ONEY, not ONEU?
ONEY is the documentation code and ONEU the equipment code — parallel registries that share three letters by design. The tracker accepts both in its single search field.
Why are ONE containers magenta?
The colour was chosen at the 2017 launch as a deliberate break from the parents’ liveries — a brand signal, with no operational meaning. Older grey or blue legacy boxes track identically.
Which alliance does ONE sail in now?
The Premier Alliance, together with HMM and Yang Ming, effective 9 February 2025. Your box may load onto a partner vessel on alliance loops while events keep flowing through ONE’s tracker.