| XAGU |  | xi'an port | CN | Xi'an International Inland Transportation Co., Ltd. | www.xaport.net/ | |
| XAPU |  | xi'an port | CN | Xi'an Free Trade Port Construction and Operation Co., Ltd. | www.xaport.net/ | |
| XARU | | | IL | Oxygen & Argon Works Ltd. | www.oxar.co.il/ | |
| XCCU | | | CN | Quzhou Xiecheng Chemical Co., Ltd. | www.xcchemical.com/ | |
| XCOU | | mount isa mines | AU | Glencore Australia Holdings Pty Ltd, | www.glencore.com.au/ | |
| XCTU | | | AE | Dubai International Marine Club | www.xcatracing.com/ | |
| XFCU | | sinophorus | CN | Hubei Sinophorus Electronics Materials Co., Ltd. | www.xingfagroup.com/ | |
| XFEU | | fec | US | Florida East Coast Railway Co. | fecrwy.com/ | |
| XFGU | | | CN | Xinjiang Xingfa Chemical Co., Ltd. | | |
| XFVU | | trawind | CN | Trawind (Ningbo) Marine Logistics Co., Ltd. | www.trawind.com/ | |
| XHCU | | | CN | CXIC Group Container Company | www.cxic.com/ | |
| XHIU | | | HK | West Ocean Shipping Co., Ltd. | www.wosco.com/ | |
| XINU | | xines | BM | Textainer Equipment Management Ltd. | www.textainer.com/ | |
| XJLU | | xjl | HK | Xiang Jiang Logistics Ltd. | | |
| XLCU | | shingchem | CN | Shandong Shing Chemical Co., Ltd. | www.shingchem.com/ | |
| XMCU | | i-line | JP | Ehime Ocean Line Co., Ltd. | www.ehime-ocean.co.jp/ | |
| XMPU | | | CN | Port Rental Box | m.zk71.com/jizhuangxiang_5000/ | |
| XOMU | | | US | ExxonMobil Corporation | corporate.exxonmobil.com/ | |
| XPEU | | | IT | Autotrasporti Pe Giuseppe Srl. | autotrasportipe.it/ | |
| XPOU | | stglogistics | FR | XPO Global Forwaring France | www.xpo.com/ | |
| XSVU |  | | NL | Trident Container Leasing BV. | www.trident-containers.com/ | |
| XTGU | | | CN | Xinjiang New Railway International Logistics | | |
| XXXU | | | FR | Unauthorised prefix (on B.I.C. authority) | www.bic-code.org/ | |
| XXXU | | | | Non existing prefix used for sold containers | | |
| XXXX | | | | Non existing prefix used for sold containers | | |
| XYEU | | | SG | Golden Bricks Shipping Co., Ltd. | | |
| XYIU | | | ID | PT. Risun Wei Shan Indonesia | risun.id/ | |
| XYLU | | xyxmg superchain | HK | Hong Kong Xiangyu Superchain Asset Management Co., Ltd. | www.xiangyu.cn/ | |
| XYZU | | ark | US | Ark Container Rentals | www.arkcontainerrentals.com/ | |
| XZKU | | | CN | Xinjiang KTZ International Logistics Co., Ltd. | | |
