AS10006 — SECOMTRUST SECOM Trust Systems Co.,Ltd.

Network type: hosting

AS10006 announces 22 IPv4 prefixes covering 146,176 addresses and 2 IPv6 prefixes.

About this network

SECOMTRUST is SECOM Trust Systems Co., Ltd., the ICT arm of the SECOM group (Japan's largest private security company). Formed in 2006 from the merger of two SECOM IT subsidiaries, it runs data centres in Mitaka, Tokyo and sells managed hosting, cloud, disaster-resilience and certificate-authority services.

What it's used for

Data-centre and managed-network space. The AS announces 55 IPv4 prefixes totalling 146,176 addresses, including a legacy 150.67.0.0/16, plus two IPv6 /48s. Sampled reverse DNS is almost all first-party — 165-100-0-5.secomtrust.net, 61-114-176-5.secomtrust.net — the generic per-address naming a hoster gives to racked machines and customer VLANs, with no subscriber-pool markers (dsl-, ppp, dhcp) anywhere in the sample.

Notable

This is hosting / managed infrastructure, not an eyeball ISP. The tell is a third-party PTR sitting inside SECOM's own space: 210229000005.obic7.obicnet.ne.jp belongs to OBIC, a separate Japanese ERP vendor whose hosted service lives on SECOM's addresses. That is what customer-hosted estate looks like. It is also not a carrier: 18 observed BGP neighbours against 146k addresses is a provider that buys transit and peers modestly, not one that sells transit widely.

Interesting

SECOM Trust Systems operates a well-known Japanese certificate authority, so a slice of this space carries PKI and trust-service infrastructure. Treat addresses here as enterprise servers and managed customer environments, and do not attribute a workload on them to SECOM itself — the tenant is frequently someone else.

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

Announced prefixes

• 61.114.176.0/20
• 113.52.156.0/22
• 121.50.57.0/24
• 121.50.58.0/23
• 121.50.60.0/22
• 150.67.0.0/16
• 165.100.0.0/17
• 165.100.208.0/20
• 165.100.224.0/19
• 180.233.132.0/22
• 193.115.128.0/19
• 193.115.184.0/21
• 202.8.16.0/21
• 203.141.224.0/24
• 203.141.226.0/23
• 203.141.228.0/22
• 203.141.232.0/21
• 203.223.80.0/21
• 210.229.0.0/19
• 211.19.32.0/24
• 211.19.34.0/23
• 211.19.38.0/23
• 2403:9400:1::/48
• 2403:9400:2::/48

Upstream networks

• AS2519 ARTERIA Networks Corporation
• AS6939 Hurricane Electric LLC
• AS2516 KDDI CORPORATION
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS38001 NewMedia Express Pte Ltd
• AS17676 SoftBank Corp.

Adjacent networks

• AS2519 ARTERIA Networks Corporation
• AS6939 Hurricane Electric LLC
• AS2516 KDDI CORPORATION
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS38001 NewMedia Express Pte Ltd
• AS17676 SoftBank Corp.

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• BroadBand Internet eXchange Osaka — Osaka, Japan