AS24253 — J-STREAM J-Stream Inc.

Network type: hosting

AS24253 announces 2 IPv4 prefixes covering 2,304 addresses and 1 IPv6 prefixes.

About this network

The AS handle J-STREAM is held by J-Stream Inc.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames J-Stream-CIDR-BLK-JP and STREAM-NET registered to the Japan Network Information Center.
• The AS announces 2304 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 22 observed neighbours; this ratio of moderate address space to a significant number of peers suggests a business network with substantial peering relationships rather than a pure transit provider.

Notable

• Registrants for both announced prefixes are listed as the Japan Network Information Center, which is consistent with the holder being a Japanese entity.
• J-Stream is a Japanese content provider, known for operating streaming services and digital content distribution platforms.
• The inventory consists of one /21 block and one /24 block in IPv4, alongside a /32 IPv6 prefix, indicating a focused corporate estate rather than a broad access network.

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

Announced prefixes

• 103.157.156.0/24
• 202.79.240.0/21
• 2401:dc40::/32

Upstream networks

• AS2516 KDDI CORPORATION
• AS2518 BIGLOBE Inc.
• AS6939 Hurricane Electric LLC
• AS17676 SoftBank Corp.
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS20485 Joint Stock Company TransTeleCom
• AS9304 HGC Global Communications Limited

Adjacent networks

• AS2516 KDDI CORPORATION
• AS2518 BIGLOBE Inc.
• AS6939 Hurricane Electric LLC
• AS17676 SoftBank Corp.
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS20485 Joint Stock Company TransTeleCom
• AS9304 HGC Global Communications Limited

Internet exchanges

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