AS23642 OBIS

OBIS - OBIS · registered in Japan

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Japan#656largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#61,126of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS23642 in ASN lookup Look up an IP in this network (202.4.250.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

202.4.250.0/24

IPv6 prefixes

All 1 prefix.

2001:df0:1800::/48

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS150368#653 TESTBED-KLN - SERVER-G Group256

AS9609#654 BBIX-CDN - BBIX, Inc.256

AS18131#655 DXNW - NTT DOCOMO BUSINESS, Inc.256

AS24287#657 TEIN2-JP - National Institute of Informatics256

AS38629#658 OKN - NTT DOCOMO BUSINESS, Inc256

AS38644#659 KANDANET - INTERNET MULTIFEED CO.256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources