CNCU → CMA CGM · carrier prefix
CNCU Container Tracking — CMA CGM-Owned Prefix
Track on cma-cgm.com — official CMA CGM tracker
CMA CGM is the French giant out of Marseille, third by fleet size and owner of the APL brand it bought in 2016 plus the intra-Asia specialist CNC.
The register mirrors those deals: alongside the core CMA codes sit three APL-heritage prefixes and the CNC brand code, all tracked on the one cma-cgm.com system.
CNCU belongs to CNC, CMA CGM’s intra-Asia brand (formerly Cheng Lie Navigation).
4 letters + 7 digits, printed on the doors
CNCU check digit: worked example
C | N | C | U | 2 | 3 | 6 | 6 | 5 | 2 |
|---|---|---|---|---|---|---|---|---|---|
| 13 | 25 | 13 | 32 | 2 | 3 | 6 | 6 | 5 | 2 |
| ×1 | ×2 | ×4 | ×8 | ×16 | ×32 | ×64 | ×128 | ×256 | ×512 |
| 13 | 50 | 52 | 256 | 32 | 96 | 384 | 768 | 1280 | 1024 |
Sum 3955 → 3955 mod 11 = 6 → check digit 6 → CNCU 236652-6
CMA CGM prefix family
Tracking with CMA CGM
The cma-cgm.com tracker wants the number pasted into its form; deep links are not honoured.
Frequently asked questions
Who owns the CNCU container prefix?
CNCU is registered to CMA CGM, founded 1978 — one of 7 prefixes the line holds in the BIC register, alongside CMAU, CGMU, ECMU.
How do I track a CNCU container?
Track CNCU containers free on the official CMA CGM tracker at cma-cgm.com — paste the full 11-character number (like the CNCU example on this page) and no account is needed.
Is CNCU 2366526 a valid container number?
Yes — CNCU 236652-6 passes ISO 6346 validation: the weighted letter-and-digit sum for CNCU236652 leaves remainder 6 mod 11, giving check digit 6. The worked table for this CNCU example is on this page.
Is CNCU a shipping line prefix or a leasing company prefix?
CNCU is a shipping-line (carrier) prefix — CMA CGM both owns the boxes and moves them, so owner and tracker are the same company.