AS9593 — NIKKEI Nikkei Inc.

Network type: hosting

AS9593 announces 9 IPv4 prefixes covering 64,512 addresses and 0 IPv6 prefixes.

About this network

AS9593 (NIKKEI) is held by Nikkei Inc. (Nihon Keizai Shimbun), the Tokyo-based media and publishing company behind The Nikkei, Japan's leading financial daily, and the owner of the Financial Times and the TX Network. This is a corporate enterprise AS, not a service provider.

What it's used for

The routing evidence is about as clean an enterprise signature as this range produces: a single announced IPv4 prefix, 138.101.0.0/16, for 65,536 addresses, and no IPv6 announced at all. One legacy /16 and nothing else is the classic shape of an organisation that received a class-B allocation early and has simply kept announcing it, rather than a provider that has accreted blocks from an RIR over time. The 14 observed BGP neighbours are more than a single-homed office would need but nowhere near the hundreds or thousands a wholesale carrier peers with, so this is a well-connected, multihomed corporate network buying resilient transit rather than selling it. That fits a large publisher: newsroom and editorial systems, corporate IT, and the public-facing infrastructure of a global news brand that cannot afford to be offline.

Notable

• A single class-B /16 with no IPv6 and no downstream customers means everything inside this AS is Nikkei's own. Any address in 138.101.0.0/16 should be read as corporate, not as a hosting or eyeball address.
• Nikkei is employee-owned. Japanese law prevents newspaper companies from being publicly traded, so the parent of the world's largest financial newspaper is itself not listed.

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

Announced prefixes

• 138.101.0.0/23
• 138.101.4.0/22
• 138.101.8.0/21
• 138.101.16.0/22
• 138.101.20.0/23
• 138.101.24.0/21
• 138.101.32.0/19
• 138.101.64.0/18
• 138.101.128.0/17

Upstream networks

• AS2497 Internet Initiative Japan Inc.
• AS6939 Hurricane Electric LLC
• AS38001 NewMedia Express Pte Ltd
• AS24482 SG.GS

Downstream networks

• AS17937 NIKKEI ADVANCED SYSTEMS INC.

Adjacent networks

• AS2497 Internet Initiative Japan Inc.
• AS17937 NIKKEI ADVANCED SYSTEMS INC.
• AS6939 Hurricane Electric LLC
• AS15412 Flag Telecom UK Limited
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd

Internet exchanges

• JPIX Tokyo — Tokyo, Japan