No, JASDEC does not allow users to share such devices with other SPs.
For further information, please see the System Documents Site shown below. (Japanese version only)
[System Documents Site]
URL:
https://faqsd.jpx.co.jp/faq/show/5079?site_domain=jp_system_documents -arrownet version2.0ガイドライン【ネットワーク接続_機構編】