{ "source": "https://contsize.com", "license": "Free to reuse with attribution to contsize.com", "method": "https://contsize.com/container-tracker-study/", "fields": { "role": "carrier = shipping line that owns and operates the box; lessor = leasing company", "deepLink": "verified = a URL carrying the container number opens the result; none = tested, parameters ignored; untested = not tested, which is not a claim of absence", "accepts": "identifier types the official tracker accepts", "fleetRank": "Alphaliner top-100 rank, 2026; null when not listed separately" }, "updated": "2026-08-03", "counts": { "owners": 28, "prefixes": 85, "carriers": 18, "lessors": 10 }, "owners": [ { "ownerId": "maersk", "owner": "Maersk", "role": "carrier", "prefixes": [ "MAEU", "MRKU", "MSKU", "PONU", "SEAU", "MNBU", "MRSU", "SUDU" ], "trackingPage": "https://www.maersk.com/tracking", "alliance": "gemini", "foundedYear": 1904, "fleetRank": 2, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "verified" }, { "ownerId": "msc", "owner": "MSC", "role": "carrier", "prefixes": [ "MSCU", "MEDU", "MSDU", "MSMU", "MSNU", "MSPU", "MSYU", "GTIU" ], "trackingPage": "https://www.msc.com/en/track-a-shipment", "alliance": "none", "foundedYear": 1970, "fleetRank": 1, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "none" }, { "ownerId": "cma-cgm", "owner": "CMA CGM", "role": "carrier", "prefixes": [ "CMAU", "CGMU", "ECMU", "APZU", "APLU", "APHU", "CNCU" ], "trackingPage": "https://www.cma-cgm.com/ebusiness/tracking", "alliance": "ocean", "foundedYear": 1978, "fleetRank": 3, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "untested" }, { "ownerId": "cosco", "owner": "COSCO Shipping Lines", "role": "carrier", "prefixes": [ "CSNU", "CBHU", "CCLU", "CSLU" ], "trackingPage": "https://elines.coscoshipping.com/ebusiness/cargoTracking", "alliance": "ocean", "foundedYear": 1961, "fleetRank": 4, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "untested" }, { "ownerId": "oocl", "owner": "OOCL", "role": "carrier", "prefixes": [ "OOLU", "OOCU" ], "trackingPage": "https://www.oocl.com/eng/ourservices/eservices/cargotracking/Pages/cargotracking.aspx", "alliance": "ocean", "foundedYear": 1969, "fleetRank": null, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "untested" }, { "ownerId": "hapag-lloyd", "owner": "Hapag-Lloyd", "role": "carrier", "prefixes": [ "HLCU", "HLXU", "HLBU", "UACU", "UAEU", "HAMU" ], "trackingPage": "https://www.hapag-lloyd.com/en/online-business/track/track-by-container-solution.html", "alliance": "gemini", "foundedYear": 1970, "fleetRank": 5, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "untested" }, { "ownerId": "one", "owner": "ONE (Ocean Network Express)", "role": "carrier", "prefixes": [ "ONEU", "MOAU", "NYKU", "KKFU", "KKTU", "KLFU" ], "trackingPage": "https://ecomm.one-line.com/one-ecom/manage-shipment/cargo-tracking", "alliance": "premier", "foundedYear": 2017, "fleetRank": 6, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "verified" }, { "ownerId": "evergreen", "owner": "Evergreen", "role": "carrier", "prefixes": [ "EGHU", "EGSU", "EISU", "EMCU", "EITU" ], "trackingPage": "https://ct.shipmentlink.com/servlet/TDB1_CargoTracking.do", "alliance": "ocean", "foundedYear": 1968, "fleetRank": 7, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "none" }, { "ownerId": "hmm", "owner": "HMM", "role": "carrier", "prefixes": [ "HMMU", "HDMU" ], "trackingPage": "https://www.hmm21.com/e-service/general/trackNTrace/TrackNTrace.do", "alliance": "premier", "foundedYear": 1976, "fleetRank": 8, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "none" }, { "ownerId": "yang-ming", "owner": "Yang Ming", "role": "carrier", "prefixes": [ "YMLU", "YMMU" ], "trackingPage": "https://www.yangming.com/e-service/Track_Trace/track_trace_cargo_tracking.aspx", "alliance": "premier", "foundedYear": 1972, "fleetRank": 9, "hasApp": true, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "zim", "owner": "ZIM", "role": "carrier", "prefixes": [ "ZIMU", "ZCSU", "ZMOU" ], "trackingPage": "https://www.zim.com/tools/track-a-shipment", "alliance": "none", "foundedYear": 1945, "fleetRank": 10, "hasApp": true, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "wan-hai", "owner": "Wan Hai Lines", "role": "carrier", "prefixes": [ "WHLU", "WHSU" ], "trackingPage": "https://www.wanhai.com/views/cargoTrack/CargoTrack.xhtml", "alliance": "none", "foundedYear": 1965, "fleetRank": 11, "hasApp": true, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "pil", "owner": "PIL (Pacific International Lines)", "role": "carrier", "prefixes": [ "PCIU", "PILU" ], "trackingPage": "https://www.pilship.com/digital-solutions/?tab=customer&id=track-trace", "alliance": "none", "foundedYear": 1967, "fleetRank": 12, "hasApp": true, "accepts": [ "container", "bl" ], "deepLink": "verified" }, { "ownerId": "sitc", "owner": "SITC Container Lines", "role": "carrier", "prefixes": [ "SITU" ], "trackingPage": "https://api.sitcline.com/sitcline/query/cargoTrack", "alliance": "none", "foundedYear": 1991, "fleetRank": 14, "hasApp": true, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "kmtc", "owner": "KMTC", "role": "carrier", "prefixes": [ "KMTU" ], "trackingPage": "https://www.ekmtc.com/index.html#/cargo-tracking", "alliance": "none", "foundedYear": 1954, "fleetRank": 16, "hasApp": false, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "matson", "owner": "Matson", "role": "carrier", "prefixes": [ "MATU" ], "trackingPage": "https://www.matson.com/shipment-tracking.html", "alliance": "none", "foundedYear": 1882, "fleetRank": 30, "hasApp": true, "accepts": [ "container", "bl", "booking" ], "deepLink": "none" }, { "ownerId": "crowley", "owner": "Crowley", "role": "carrier", "prefixes": [ "CMCU" ], "trackingPage": "https://csight.crowley.com/crowley/s/shipment-tracking", "alliance": "none", "foundedYear": 1892, "fleetRank": null, "hasApp": false, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "sm-line", "owner": "SM Line", "role": "carrier", "prefixes": [ "SMCU" ], "trackingPage": "https://esvc.smlines.com/smline/CUP_HOM_3301.do", "alliance": "none", "foundedYear": 2016, "fleetRank": null, "hasApp": false, "accepts": [ "container", "bl" ], "deepLink": "untested" }, { "ownerId": "triton", "owner": "Triton International", "role": "lessor", "prefixes": [ "TRLU", "TCLU", "TCNU", "TCKU", "TTNU" ] }, { "ownerId": "textainer", "owner": "Textainer", "role": "lessor", "prefixes": [ "TGHU", "TEXU", "TEMU", "TGBU", "MAGU", "SEGU", "GESU" ] }, { "ownerId": "florens", "owner": "Florens", "role": "lessor", "prefixes": [ "FCIU", "FSCU" ] }, { "ownerId": "cai", "owner": "CAI (Mitsubishi HC Capital)", "role": "lessor", "prefixes": [ "CAIU", "BEAU", "BMOU" ] }, { "ownerId": "seacube", "owner": "SeaCube Containers", "role": "lessor", "prefixes": [ "INBU" ] }, { "ownerId": "touax", "owner": "Touax", "role": "lessor", "prefixes": [ "TGCU" ] }, { "ownerId": "caru", "owner": "CARU Containers", "role": "lessor", "prefixes": [ "CARU" ] }, { "ownerId": "ues", "owner": "UES International", "role": "lessor", "prefixes": [ "UESU" ] }, { "ownerId": "blue-sky", "owner": "Blue Sky Intermodal", "role": "lessor", "prefixes": [ "BSIU" ] }, { "ownerId": "raffles", "owner": "Raffles Lease", "role": "lessor", "prefixes": [ "RFCU" ] } ] }