AS63780 dual&Co. Inc.

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

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Japan#641largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#59,899of 79,396 networks with IPv4

IPv616,384 x /481 prefixes

CountryJapan745 ASNs registered there

Open AS63780 in ASN lookup Look up an IP in this network (103.139.106.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

103.139.106.0/24

IPv6 prefixes

All 1 prefix.

2404:e040:c000::/34

Other ASNs named dual&Co. Inc.

1 other network uses the same organisation name; together with AS63780 they announce 1,536 IPv4 addresses.

ASNNameIPv4 addresses

AS63773DUAL-NET - dual&Co. Inc. JP1,280

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS131976#638 JPNAP-WEST - INTERNET MULTIFEED CO.256

AS138652#639 SGCOM-AS-AP - Super Godzilla Communications GK256

AS146984#640 JPNAP-EAST - INTERNET MULTIFEED CO.256

AS23634#642 E-DNS-JP - WIDE Project256

AS214675#643 Starlamp Hidenori Matsuo256

AS63795#644 ROUTEL - RoutelNet256

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