AS31367 — NEO-CUST

AS31367 announces 9 IPv4 prefixes covering 4,608 addresses and 0 IPv6 prefixes.

About this network

NEO-CUST is the AS handle for Zayo Infrastructure France SA, a Pan-European fibre infrastructure operator.

What it's used for

• The address space carries diverse corporate and institutional tenants, including the Organisation for Economic Co-operation and Development (netname FR-OECD-20070813), Saint-Gobain (netname SGT-LEG), and Lagardère Travel Retail France (netname FR-LTRF-20210212).
• With 4608 IPv4 addresses across 10 prefixes and only 3 observed neighbours, the low neighbour-to-address ratio indicates a transit or infrastructure role rather than an access network.

Notable

• Registrants vary significantly from the announcer, listing entities such as the OECD, Saint-Gobain, and Arrow ECS GmbH, which suggests the AS hosts leased or customer-specific address space.
• Zayo Infrastructure France SA operates as part of the Zayo Europe network, providing international network services and connectivity solutions.
• The inventory consists of 10 IPv4 prefixes with no IPv6 prefixes announced, reflecting a mixed corporate estate with varied block sizes.

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

Announced prefixes

• 78.41.128.0/21
• 85.208.192.0/24
• 91.200.177.0/24
• 91.216.11.0/24
• 159.151.250.0/23
• 185.236.141.0/24
• 185.254.208.0/23
• 185.254.210.0/24
• 192.109.238.0/24

Upstream networks

• AS8218 Zayo Infrastructure France SA
• AS6453 TATA COMMUNICATIONS (AMERICA) INC

Downstream networks

• AS21070 TotalEnergies SE

Adjacent networks

• AS8218 Zayo Infrastructure France SA
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS21070 TotalEnergies SE