Autonomous Systems in Japan: Organizations Starting with R

Organization names are shown as registered. Names that start with a digit or a symbol are listed at the end.

Data as of: 2026-10-05

• AS138968 rainbow network limited
• AS23820 Rakuten Group, Inc.
• AS131914 Rakuten Group, Inc.
• AS23720 Rakuten Mobile Network, Inc.
• AS138384 Rakuten Mobile Network, Inc.
• AS10012 Rakuten Mobile, Inc.
• AS59122 Ranger-Systems Co., Ltd.
• AS141461 Reconciled Awareness Network
• AS23836 RELATION Co., Ltd.
• AS2907 Research Organization of Information and Systems, National Institute of Informatics
• AS133405 RETN Co., Ltd.
• AS131893 RICOH Company, Ltd.
• AS18128 RIKEN
• AS45685 Rikkyo Gakuin Rikkyo University
• AS58784 Rissho University
• AS23807 Ritsumeikan University
• AS63795 RoutelNet
• AS151390 RUTILEA, Inc.
• AS63805 Ryobi Systems Co., Ltd.