KKTU → ONE (Ocean Network Express) · carrier prefix
KKTU Container Tracking — ONE (Ocean Network Express)-Owned Prefix
Track on ecomm.one-line.com — official ONE (Ocean Network Express) trackerONE (Ocean Network Express)'s tracker accepts the container number directly in the link — the checker below builds it for you.
ONE — Ocean Network Express — is the magenta-liveried 2017 merger of Japan’s three container lines: NYK, MOL and K Line. Overnight it became a top-six carrier operating from Singapore.
The merged fleet never repainted every box, so NYK- and K Line-registered codes still sail under the ONE flag, and the one-line.com tracker answers for all of them.
KKTU is a second K Line-registered code that operates under ONE today.
4 letters + 7 digits, printed on the doors
KKTU check digit: worked example
K | K | T | U | 7 | 6 | 5 | 2 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| 21 | 21 | 31 | 32 | 7 | 6 | 5 | 2 | 2 | 1 |
| ×1 | ×2 | ×4 | ×8 | ×16 | ×32 | ×64 | ×128 | ×256 | ×512 |
| 21 | 42 | 124 | 256 | 112 | 192 | 320 | 256 | 512 | 512 |
Sum 2347 → 2347 mod 11 = 4 → check digit 4 → KKTU 765221-4
ONE (Ocean Network Express) prefix family
Tracking with ONE (Ocean Network Express)
ecomm.one-line.com accepts the container number as a URL parameter (browser-verified), so deep links land straight on your shipment.
Frequently asked questions
Who owns the KKTU container prefix?
KKTU is registered to ONE (Ocean Network Express), founded 2017 — one of 6 prefixes the line holds in the BIC register, alongside ONEU, MOAU, NYKU.
How do I track a KKTU container?
Track KKTU containers free on the official ONE (Ocean Network Express) tracker at ecomm.one-line.com — paste the full 11-character number (like the KKTU example on this page) and no account is needed.
Is KKTU 7652214 a valid container number?
Yes — KKTU 765221-4 passes ISO 6346 validation: the weighted letter-and-digit sum for KKTU765221 leaves remainder 4 mod 11, giving check digit 4. The worked table for this KKTU example is on this page.
Is KKTU a shipping line prefix or a leasing company prefix?
KKTU is a shipping-line (carrier) prefix — ONE (Ocean Network Express) both owns the boxes and moves them, so owner and tracker are the same company.