AS37919 — SEGASAMMY SEGA SAMMY HOLDINGS INC.

AS37919 announces 1 IPv4 prefixes covering 65,536 addresses and 1 IPv6 prefixes.

About this network

SEGASAMMY is the autonomous system for Sega Sammy Holdings Inc., a Japanese conglomerate formed from the merger of Sega and Sammy Corporation.

What it's used for

• The address space carries corporate infrastructure, evidenced by the consistent netname SEGASAMMY across all announced prefixes.
• The AS announces 65,536 IPv4 addresses across 7 prefixes and 1 IPv6 prefix, with 11 observed routing neighbours.
• This inventory represents an internal corporate estate with site-by-site segmentation, rather than a public access or transit network.

Notable

• All registrants are listed as IRT-JPNIC-JP with the netname SEGASAMMY, aligning with the AS holder.
• Sega Sammy Holdings was established in October 2004 through the management integration of SEGA CORPORATION and Sammy CORPORATION.
• The IPv4 inventory is finely subdivided into seven distinct prefixes within the 157.109.0.0/17 block.

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

Announced prefixes

• 157.109.0.0/16
• 2001:df4:53c0::/48

Upstream networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited

Adjacent networks

• AS2519 ARTERIA Networks Corporation
• AS17676 SoftBank Corp.
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS9002 RETN Limited

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 5 route objects.
• Listed in as-sets: AS-BBIX-T, AS-BBIX-T-V6, AS-IIJ, AS-IIJ6, AS-IPV6_VECTANT, AS-KDD, AS-KDDCUSTOMER2, AS-OCN, AS-OCN, AS-PACNET-DOWNSTREAM-JP, AS-TELSTRA-INTL-CUSTOMERS, AS-VECTANT, AS2497:AS-IIJ, AS2497:AS-IIJ6.

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan