Autonomous Systems in Japan: Organizations Starting with O

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

• AS23629 Obihiro City Cable Co.,Ltd.
• AS23642 OBIS
• AS131909 OCC Co., Ltd.
• AS10003 Ogaki Cable Television Co.,Inc.
• AS18129 OKAYAMA NETWORK INC.
• AS7665 Okayama Prefectural Government
• AS18124 Okayama University of Science
• AS24277 Okinawa Cable Network Inc.
• AS59097 Okinawa Cross Head Co., Ltd.
• AS131895 Okinawa Institute of science and technology
• AS9621 Okinawa Telecommunication Network Co.,Inc
• AS63782 Omaezaki Cable Television Co.Ltd
• AS151387 OMURA CABLE TELEVISION K.K.
• AS9358 OPTAGE Inc.
• AS17511 OPTAGE Inc.
• AS151379 OPTAGE Inc.
• AS38641 Osaka Sangyo University
• AS4730 Osaka University
• AS38462 Osaki Computer Engineering Co.Ltd
• AS17514 Otsuka Corp.