AS208746 — SOPRA-STERIA-ASN SOPRA STERIA INFRASTRUCTURE & SECURITY SERVICES SAS

AS208746 announces 5 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.

About this network

SOPRA-STERIA-ASN is held by Sopra Steria Infrastructure & Security Services SAS.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames such as FR-SOPRASTERIA-I2S-20190612, FR-SOPRA-HR-OUTSOURCING, and FR-STERIA.
• The AS announces 2048 IPv4 addresses across 5 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.
• Traffic from this AS consists of office workers, IT service delivery endpoints, and internal application servers supporting Sopra Steria's global IT consulting and infrastructure management operations.

Notable

• Registrants align with the announcer, including SOPRA STERIA INFRASTRUCTURE & SECURITY SERVICES SAS, SOPRA HR Software SAS, and SOPRA STERIA GROUP SA.
• One prefix, 193.240.114.0/24, lists LEVEL 3 COMMUNICATIONS - ABUSE as the registrant, reflecting historical allocation prior to the current ownership structure.
• The inventory is finely subdivided into five distinct /24 and /22 blocks, consistent with site-by-site segmentation for a large multinational corporation.

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

Announced prefixes

• 45.86.100.0/22
• 193.56.233.0/24
• 193.56.237.0/24
• 193.240.114.0/24
• 194.146.51.0/24

Upstream networks

• AS8218 Zayo Infrastructure France SA
• AS10753 Level 3 Parent, LLC

Adjacent networks

• AS8218 Zayo Infrastructure France SA
• AS10753 Level 3 Parent, LLC

Routing security

• RPKI: 2 valid, 0 invalid and 12 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 21% of announcements registered; 6 route objects.
• Listed in as-sets: AS58453:AS-ASIAASCUST, AS58453:AS-ASIAASCUST, AS58453:AS-ASIATEST, AS8218:AS-CUSTOMERS, AS8218:AS-FR-CUSTOMERS.