CSLU → COSCO Shipping Lines · carrier prefix
CSLU Container Tracking — COSCO Shipping Lines-Owned Prefix
Track on elines.coscoshipping.com — official COSCO Shipping Lines tracker
COSCO Shipping Lines is China’s state carrier and the fourth-largest fleet worldwide, formed when COSCO and China Shipping merged in 2016.
Its box pool mixes group registrations — including one code formally held by the group’s own leasing arm Florens yet painted on fleet containers — so the family is smaller than the fleet suggests.
4 letters + 7 digits, printed on the doors
CSLU check digit: worked example
C | S | L | U | 6 | 0 | 5 | 6 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|
| 13 | 30 | 23 | 32 | 6 | 0 | 5 | 6 | 5 | 4 |
| ×1 | ×2 | ×4 | ×8 | ×16 | ×32 | ×64 | ×128 | ×256 | ×512 |
| 13 | 60 | 92 | 256 | 96 | 0 | 320 | 768 | 1280 | 2048 |
Sum 4933 → 4933 mod 11 = 5 → check digit 5 → CSLU 605654-5
COSCO Shipping Lines prefix family
Tracking with COSCO Shipping Lines
elines.coscoshipping.com tracks by container, B/L or booking from one form; paste the number rather than trying URL parameters.
Frequently asked questions
Who owns the CSLU container prefix?
CSLU is registered to COSCO Shipping Lines, founded 1961 — one of 4 prefixes the line holds in the BIC register, alongside CSNU, CBHU, CCLU.
How do I track a CSLU container?
Track CSLU containers free on the official COSCO Shipping Lines tracker at elines.coscoshipping.com — paste the full 11-character number (like the CSLU example on this page) and no account is needed.
Is CSLU 6056545 a valid container number?
Yes — CSLU 605654-5 passes ISO 6346 validation: the weighted letter-and-digit sum for CSLU605654 leaves remainder 5 mod 11, giving check digit 5. The worked table for this CSLU example is on this page.
Is CSLU a shipping line prefix or a leasing company prefix?
CSLU is a shipping-line (carrier) prefix — COSCO Shipping Lines both owns the boxes and moves them, so owner and tracker are the same company.