AS18072 NTT DOCOMO BUSINESS, Inc.

STREAMWING - NTT DOCOMO BUSINESS, Inc. · registered in Japan

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

Rank in Japan#511largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#28,460of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS18072 in ASN lookup Look up an IP in this network (219.101.48.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

219.101.48.0/22
219.101.63.0/24

Other ASNs named NTT DOCOMO BUSINESS, Inc.

7 other networks use the same organisation name; together with AS18072 they announce 28,644,864 IPv4 addresses.

ASNNameIPv4 addresses

AS4713OCN - NTT DOCOMO BUSINESS,Inc. JP28,623,360

AS38639HANABI - NTT DOCOMO BUSINESS, Inc. JP13,312

AS18259HIGE - NTT DOCOMO BUSINESS, Inc JP4,096

AS7674GOFORS - NTT DOCOMO BUSINESS, Inc JP1,280

AS37900MATSURI - NTT DOCOMO BUSINESS, Inc. JP1,024

AS18131DXNW - NTT DOCOMO BUSINESS, Inc. JP256

AS38629OKN - NTT DOCOMO BUSINESS, Inc JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

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

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

AS146979#510 SUNDAICHI - University of Nagasaki1,280

AS55393#512 MIDOKURA - Midokura Japan K.K.1,280

AS63801#513 DODO-NET - DODO K.K.1,280

AS131917#514 TOSHIBA-IS - Toshiba I.S. corp1,280

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