AS63773 dual&Co. Inc.

DUAL-NET - dual&Co. Inc. · registered in Japan

IPv4 addresses1,2802 prefixes · <0.001% of announced IPv4

Rank in Japan#506largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#27,925of 79,396 networks with IPv4

IPv649,153 x /483 prefixes

CountryJapan745 ASNs registered there

Open AS63773 in ASN lookup Look up an IP in this network (103.96.229.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

103.96.229.0/24
202.226.40.0/22

IPv6 prefixes

All 3 prefixes.

2001:df1:e500::/48
2404:e040::/33
2404:e040:8000::/34

Other ASNs named dual&Co. Inc.

1 other network uses the same organisation name; together with AS63773 they announce 1,536 IPv4 addresses.

ASNNameIPv4 addresses

AS63780BIRDIE-NET - dual&Co. Inc. JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS150367#503 CLOUD-NET - Future Corp.1,536

AS24229#504 KOCHI-IX - IX-layers, Inc.1,280

AS131912#505 CYBOZU - Cybozu,Inc.1,280

AS7667#507 KDDLAB - KDDI Research, Inc.1,280

AS7674#508 GOFORS - NTT DOCOMO BUSINESS, Inc1,280

AS131900#509 DIRECTORZ - Directorz Co.,Ltd.1,280

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