AS42369 — CORESYSTEM

AS42369 announces 2 IPv4 prefixes covering 512 addresses and 15 IPv6 prefixes.

About this network

CORESYSTEM is operated by CoreSystem SASU.

What it's used for

• The address space carries infrastructure and service endpoints, evidenced by reverse DNS entries such as ae0-96-i4k-01-nce.coresystem.net and web190-vip.poneyserver.com.
• The AS announces 512 IPv4 addresses across 2 prefixes and 16 IPv6 prefixes, while maintaining 11 observed neighbours. This ratio of limited address inventory to a moderate number of peering partners indicates a transit or network service provider role rather than a large-scale access network.
• As a network service provider, traffic from this AS consists of upstream transit, inter-AS routing, and connectivity for its customer base.

Notable

• Registrants for both announced IPv4 prefixes are listed as CORESYSTEM NOC; CORESYSTEM SASU, which aligns directly with the AS holder.
• The address inventory is compact, consisting of two /24 IPv4 blocks and a set of IPv6 prefixes under the 2a10:8b40::/36 range.

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

Announced prefixes

• 185.235.147.0/24
• 188.240.51.0/24
• 2a10:8b40::/35
• 2a10:8b40:1002::/47
• 2a10:8b40:1004::/46
• 2a10:8b40:1008::/45
• 2a10:8b40:1010::/44
• 2a10:8b40:1020::/43
• 2a10:8b40:1040::/42
• 2a10:8b40:1080::/41
• 2a10:8b40:1100::/40
• 2a10:8b40:1200::/39
• 2a10:8b40:1400::/38
• 2a10:8b40:1800::/37
• 2a10:8b40:2000::/35
• 2a10:8b40:4000::/34
• 2a10:8b40:8000::/33

Upstream networks

• AS3215 Orange S.A.
• AS6939 Hurricane Electric LLC
• AS34019 Hivane Association
• AS13030 Init7 (Switzerland) Ltd.

Adjacent networks

• AS3215 Orange S.A.
• AS6939 Hurricane Electric LLC
• AS34019 Hivane Association
• AS13030 Init7 (Switzerland) Ltd.

Internet exchanges

• France-IX Paris — Paris, France
• France-IX Lyon — Lyon, France