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Bandwidth and Transit Providers in Japan

Who are the main transit providers in Japan?

viabandwidth maps 14 IP transit and bandwidth carriers registered in Japan. Announced route space is derived from public RIR IPv4 allocations and BGP route observations, so you can shortlist by scale before approaching an operator for a quote.

Carrier data compiled from public registry sources and independent network verification. Last reviewed 2026-06-27.

14 providers

Glbb

glbb.jp

Direct

At GLBB Japan, we believe that whether you are an individual, small or large business, everyone needs to be given the opportunity to access information using an optimal communication platform.

IP transit46K IPv4

Cnserver

cnserver.com

Stay up to date with the latest news, product updates, and helpful insights from our team. Explore articles, tips, and announcements.

IP transit24K IPv4

Kansuiun

kansuiun.com

Most bookkeeping software is accurate, but hard to use. We make the opposite trade-off, and hope you don’t get audited.

IP transit2K IPv4

NTTドコモビジネス「海外拠点」です。

ntt.com

Direct

NTTドコモビジネス「海外拠点」です。

MPLS28.7M IPv4

Telstrainternational

telstrainternational.com

Telstra International delivers solutions, services & partners to turn your vision into reality—empowering enterprise & wholesale success globally.

EthernetMPLSIP transitDIA1.3M IPv4

Hivelocity

hivelocity.net

Direct

ASDETUK http://www.host1plus.com provides direct L40 GPU infrastructure, colocation and bare-metal hosting through Hivelocity. Its global data center footprint includes locations across North America, Europe, Asia, Africa, Australia and South America with HIPAA, ISO 27001, PCI DSS and SOC 2 coverage.

WavelengthIP transitMPLS653K IPv4
amsterdam / ashburn / atlanta / chicago

MC-Digital Realty

mc-digitalrealty.com

Direct

MC-Digital Realty (MCDR) Osaka provides direct H100-ready data center infrastructure and colocation from Tokyo. Its AI facilities support high-performance computing, interconnection and liquid cooling with SOC 2 and HIPAA coverage.

IP transit3K IPv4
tokyo

Nic

nic.ad.jp

Direct

We, Japan Network Information Center (JPNIC), are NOT an ISP and are an organization that allocates and manages IP addresses and AS numbers in Japan.

15.5M IPv4

VECTANT VECTANT

arteria-net.com

重要事項説明 | 「アルテリア・ネットワークス」のオフィシャルサイトです。自社保有の光ファイバーによる大容量のバックボーンとアクセスラインを活用した法人向けとマンション向けのネットワークソリューションをご紹介いたします。アルテリアは日々変化する時代の中において、常に挑戦者・革新者としてお客様のニーズに柔軟且つ迅速に応えることを通じ、「靭(しな)やか情報通信プラットフォーマー」として社会に貢献することを目指します。

MPLS7.0M IPv4

“IIJってどんな会社だろう?図やデータを用いてわかりやすく紹介します。

iij.ad.jp

“IIJってどんな会社だろう?図やデータを用いてわかりやすく紹介します。

Wavelength4.0M IPv4

Optage

optage.co.jp

オプテージの公式サイトです。関西一円に広がる独自の光ファイバーネットワークを基盤に高品質で低価格なサービスを提供しております。

MPLS3.0M IPv4

Mfeed

mfeed.ad.jp

日本最大級のIXサービス「JPNAP」やIPv6接続サービス「transix」を提供するインターネットマルチフィードの公式サイトです。日本のインターネットインフラを支える最先端の技術情報、会社情報、ニュースをお届けします。

141K IPv4

Bbtower

bbtower.co.jp

Reseller

第2創業期を迎えたブロードバンドタワーについて、「これまでの歩み」「会社の強み」「事業内容と今後の展望」についてわかりやすく説明します。

MPLS34K IPv4

DODO株式会社では、ネットワーク品質と顧客対応の両面から、

dodo.ad.jp

DODO株式会社では、ネットワーク品質と顧客対応の両面から、 長く信頼される通信サービスを支える体制づくりを進めています。 採用についても、事業成長と組織状況を踏まえながら、必要なタイミングで慎重に行っています。

IP transitDIA10K IPv4

Bbix

bbix.com.ph

IX: The Heartbeat of Digital Philippines What is IX The Internet that we use today is a network of networks. It is an aggregation of various services such as ISP, contents, and cloud. So how are they connected? The answer is simple: they are connected physically. And that is where BBIX Ph and its Internet […]

IP transit1K IPv4
FAQ

Frequently asked questions

Who are the main transit providers in Japan?
viabandwidth tracks 14 IP transit and bandwidth carriers registered in Japan, ranging from backbone operators with the largest IPv4 holdings to regional and access carriers. The top providers by network size appear first in the directory.
What is IP transit?
IP transit is a service where a network operator carries your traffic across its own network and connects it to the rest of the internet. You pay a transit provider for bandwidth capacity, and they route your packets upstream. Transit is distinct from peering, where two networks exchange traffic directly at no cost.
What service types do carriers in Japan offer?
Carriers here advertise services such as IP transit, dedicated internet access, wavelengths, dark fiber, carrier ethernet and MPLS. Filter by service type to shortlist only the carriers that sell what you need, then compare announced route space.
How do I evaluate a transit provider?
Compare the service types they offer, their announced route space, latency to your target markets and SLA terms. A carrier profile shows a contact route only when the operator has claimed its listing and provided one; otherwise it links you to the operator site.