AS4685 — ASAHI-NET Asahi Net

Network type: residential

AS4685 announces 60 IPv4 prefixes covering 1,277,952 addresses and 2 IPv6 prefixes.

About this network

ASAHI-NET — Asahi Net, Inc., a long-running Japanese internet service provider serving consumers and businesses nationwide.

What it's used for

• Fixed broadband internet access — fibre and, historically, ADSL — for Japanese households and small businesses, plus mobile data as an MVNO.

Notable

• A classic eyeball network: most addresses here terminate at subscriber homes, so an IP in this space is a residential user far more often than a server.
• Asahi Net rides on NTT's FLET'S fibre access and on NTT DoCoMo's radio network for its mobile service, rather than owning last-mile infrastructure itself.

Interesting

• The company began in 1990 as a PC-communication (dial-up BBS) service and moved to internet access in 1994 — one of the Japanese providers that made the jump from the pre-web online-service era. It has been publicly listed in Tokyo since 2007.
• Asahi Net is one of the few Japanese ISPs to offer English-language support, which makes it a common pick for foreign residents.

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

Announced prefixes

• 14.3.0.0/16
• 36.3.192.0/19
• 61.87.32.0/19
• 61.114.192.0/19
• 61.125.192.0/18
• 61.213.64.0/18
• 101.50.224.0/19
• 110.4.128.0/17
• 110.5.0.0/18
• 111.234.128.0/18
• 116.70.192.0/18
• 116.91.224.0/19
• 118.243.0.0/16
• 119.150.32.0/19
• 119.150.64.0/19
• 120.51.160.0/19
• 121.1.128.0/17
• 122.103.128.0/19
• 122.145.224.0/19
• 122.223.32.0/19
• 122.223.160.0/19
• 122.223.192.0/19
• 122.249.0.0/16
• 124.155.0.0/17
• 131.129.0.0/16
• 138.64.0.0/16
• 150.9.0.0/17
• 150.9.128.0/18
• 150.9.192.0/20
• 150.91.0.0/17
• 157.14.160.0/19
• 157.107.0.0/16
• 165.100.128.0/19
• 180.235.0.0/18
• 183.76.0.0/15
• 202.208.128.0/19
• 202.213.128.0/19
• 202.224.32.0/19
• 203.112.0.0/19
• 203.181.0.0/18
• 203.189.32.0/19
• 203.212.32.0/19
• 210.155.192.0/19
• 210.167.112.0/20
• 210.170.160.0/19
• 210.253.224.0/19
• 211.13.128.0/19
• 211.120.64.0/19
• 211.132.32.0/19
• 218.45.160.0/19
• 218.219.192.0/18
• 219.121.0.0/18
• 220.146.0.0/16
• 220.147.0.0/18
• 220.150.96.0/19
• 220.150.128.0/18
• 220.150.224.0/19
• 220.157.128.0/17
• 221.113.0.0/17
• 222.228.32.0/19
• 2001:c28::/32
• 2405:6580::/29

Upstream networks

• AS2914 NTT America, Inc.
• AS2519 ARTERIA Networks Corporation
• AS6939 Hurricane Electric LLC
• AS2497 Internet Initiative Japan Inc.
• AS2516 KDDI CORPORATION
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS20485 Joint Stock Company TransTeleCom
• AS38001 NewMedia Express Pte Ltd
• AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
• AS4637 Telstra Global

Adjacent networks

• AS2914 NTT America, Inc.
• AS2519 ARTERIA Networks Corporation
• AS6939 Hurricane Electric LLC
• AS2497 Internet Initiative Japan Inc.
• AS2516 KDDI CORPORATION
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS8966 EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
• AS20485 Joint Stock Company TransTeleCom
• AS38001 NewMedia Express Pte Ltd
• AS4637 Telstra Global

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• BroadBand Internet eXchange Osaka — Osaka, Japan
• Equinix Internet Exchange Tokyo — Tokyo, Japan
• JPIX Osaka — Osaka, Japan
• Network Service Provider IXP (Distributed IX in Edo) — Tokyo, Japan