AS9605 — DOCOMO NTT DOCOMO, INC.

Network type: mobile

AS9605 announces 342 IPv4 prefixes covering 2,536,448 addresses and 46 IPv6 prefixes.

About this network

NTT DoCoMo (DOCOMO) — Japan's largest mobile carrier, part of the NTT group.

What it's used for

• Mobile data for a very large Japanese subscriber base, plus DoCoMo's related online services.

Notable

• A large "eyeball" network; addresses here are typically Japanese mobile devices, often behind carrier-grade NAT, so geo is coarse.
• One of Japan's three big carriers alongside KDDI (au) and SoftBank.

Interesting

• DoCoMo pioneered mobile data early with its i-mode service in the late 1990s, years ahead of the smartphone era.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 1.66.20.0/22
• 1.66.24.0/21
• 1.66.32.0/22
• 1.66.36.0/24
• 1.66.68.0/22
• 1.66.90.0/24
• 1.66.92.0/24
• 1.66.96.0/19
• 1.66.128.0/17
• 1.67.0.0/17
• 1.67.128.0/18
• 1.67.192.0/19
• 1.67.224.0/21
• 1.67.232.0/22
• 1.67.236.0/23
• 1.67.240.0/20
• 1.72.0.0/16
• 1.73.0.0/18
• 1.73.64.0/21
• 1.73.72.0/22
• 1.73.76.0/23
• 1.73.128.0/18
• 1.73.192.0/19
• 1.73.224.0/20
• 1.73.244.0/23
• 1.73.248.0/24
• 1.74.0.0/17
• 1.74.192.0/23
• 1.74.196.0/22
• 1.74.200.0/21
• 1.74.208.0/20
• 1.74.240.0/20
• 1.75.0.0/21
• 1.75.8.0/22
• 1.75.12.0/23
• 1.75.14.0/24
• 1.75.16.0/20
• 1.75.64.0/18
• 1.75.128.0/18
• 1.75.196.0/22
• 1.75.202.0/23
• 1.75.204.0/22
• 1.75.208.0/20
• 1.75.224.0/19
• 1.76.4.0/22
• 1.76.8.0/21
• 1.76.16.0/20
• 1.76.32.0/19
• 1.76.64.0/21
• 1.76.72.0/22
• 1.76.80.0/21
• 1.76.148.0/22
• 1.76.152.0/21
• 1.76.160.0/19
• 1.76.192.0/19
• 1.76.224.0/22
• 1.77.0.0/16
• 1.78.0.0/18
• 1.78.64.0/19
• 1.78.96.0/22
• 1.78.127.0/24
• 1.78.128.0/17
• 1.79.2.0/23
• 1.79.4.0/24
• 1.79.6.0/23
• 1.79.8.0/21
• 1.79.16.0/20
• 1.79.32.0/19
• 1.79.66.0/23
• 1.79.68.0/22
• 1.79.72.0/21
• 1.79.80.0/20
• 1.79.96.0/19
• 1.79.128.0/19
• 1.79.160.0/20
• 1.79.176.0/21
• 1.79.216.0/21
• 1.79.224.0/19
• 27.228.0.0/15
• 27.230.0.0/19
• 27.230.32.0/21
• 27.230.41.0/24
• 27.230.42.0/23
• 27.230.44.0/22
• 27.230.48.0/22
• 27.230.52.0/24
• 27.230.56.0/21
• 27.230.64.0/20
• 27.230.80.0/21
• 27.230.88.0/22
• 27.230.94.0/23
• 27.230.96.0/19
• 27.230.128.0/19
• 27.230.160.0/22
• 27.230.172.0/24
• 27.230.174.0/23
• 27.230.187.0/24
• 27.230.192.0/18
• 27.231.0.0/16
• 49.96.0.0/18

and 288 more.

Upstream networks

• AS2914 NTT America, Inc.
• AS2497 Internet Initiative Japan Inc.
• AS6939 Hurricane Electric LLC
• AS2514 NTT PC Communications, Inc.
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS50673 Serverius Holding B.V.
• AS17639 Converge ICT Solutions Inc.
• AS38001 NewMedia Express Pte Ltd
• AS37721 Virtual Technologies & Solutions
• AS20766 Association "Gitoyen"
• AS9930 TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia
• AS12779 IT.Gate S.p.A.
• AS49559 A-Systems Sp. z o.o.
• AS37100 SEACOM Limited
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS29632 Netassist International EOOD
• AS20485 Joint Stock Company TransTeleCom
• AS56655 Gigahost AS
• AS213241 TECHIT.BE SRL
• AS34019 Hivane Association

Adjacent networks

• AS2914 NTT America, Inc.
• AS2497 Internet Initiative Japan Inc.
• AS6939 Hurricane Electric LLC
• AS2514 NTT PC Communications, Inc.
• AS24482 SG.GS
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50673 Serverius Holding B.V.
• AS48362 Stadtwerke Feldkirch
• AS48185 team.blue NV
• AS50300 CustodianDC Limited
• AS17639 Converge ICT Solutions Inc.
• AS38001 NewMedia Express Pte Ltd
• AS37721 Virtual Technologies & Solutions
• AS20766 Association "Gitoyen"
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS57463 NetIX Communications JSC
• AS12779 IT.Gate S.p.A.
• AS49559 A-Systems Sp. z o.o.
• AS9930 TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, Malaysia
• AS29632 Netassist International EOOD
• AS20485 Joint Stock Company TransTeleCom
• AS56655 Gigahost AS
• AS34019 Hivane Association
• AS213241 TECHIT.BE SRL

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• BroadBand Internet eXchange Osaka — Osaka, Japan
• JPIX Osaka — Osaka, Japan