ECMU → CMA CGM · carrier prefix
ECMU 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.
4 letters + 7 digits, printed on the doors
ECMU check digit: worked example
E | C | M | U | 3 | 3 | 6 | 3 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 13 | 24 | 32 | 3 | 3 | 6 | 3 | 8 | 3 |
| ×1 | ×2 | ×4 | ×8 | ×16 | ×32 | ×64 | ×128 | ×256 | ×512 |
| 15 | 26 | 96 | 256 | 48 | 96 | 384 | 384 | 2048 | 1536 |
Sum 4889 → 4889 mod 11 = 5 → check digit 5 → ECMU 336383-5
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 ECMU container prefix?
ECMU is registered to CMA CGM, founded 1978 — one of 7 prefixes the line holds in the BIC register, alongside CMAU, CGMU, APZU.
How do I track a ECMU container?
Track ECMU containers free on the official CMA CGM tracker at cma-cgm.com — paste the full 11-character number (like the ECMU example on this page) and no account is needed.
Is ECMU 3363835 a valid container number?
Yes — ECMU 336383-5 passes ISO 6346 validation: the weighted letter-and-digit sum for ECMU336383 leaves remainder 5 mod 11, giving check digit 5. The worked table for this ECMU example is on this page.
Is ECMU a shipping line prefix or a leasing company prefix?
ECMU is a shipping-line (carrier) prefix — CMA CGM both owns the boxes and moves them, so owner and tracker are the same company.