AS204818 — HOSTEUR-NET-CORE Hosteur SAS

AS204818 announces 12 IPv4 prefixes covering 10,496 addresses and 1 IPv6 prefixes.

About this network

HOSTEUR-NET-CORE is operated by Hosteur SAS.

What it's used for

• The address space carries hosting and business infrastructure, evidenced by netnames such as FR-HOSTEUR-20090130, CH-7LXSERVICES-20190701, and Hosteur-LILLE.
• The AS announces 10,496 IPv4 addresses across 12 prefixes and 1 IPv6 prefix, with 9 observed neighbours, indicating a hosting or business provider role rather than a transit carrier.
• Traffic from this AS consists of web servers, API endpoints, and hosted services for business clients, consistent with Hosteur's role as a French hosting provider.

Notable

• Registrants include Hosteur SAS, 7LX SERVICES SARL, and CITYWAY SAS, with some prefixes showing different registrants than the announcer, suggesting leased space or post-acquisition history.
• The address inventory is fragmented across multiple /22 and /24 blocks, with some prefixes registered to third parties like 7LX SERVICES SARL and CITYWAY SAS.

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

Announced prefixes

• 45.92.108.0/22
• 46.16.205.0/24
• 46.16.207.0/24
• 46.182.4.0/22
• 81.161.58.0/24
• 185.148.76.0/23
• 185.148.79.0/24
• 185.158.4.0/22
• 185.245.92.0/22
• 194.88.246.0/23
• 213.134.14.0/24
• 217.16.0.0/20
• 2a0d:5380::/29

Upstream networks

• AS34177 Celeste SAS
• AS8218 Zayo Infrastructure France SA
• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS21351 Canal + Telecom SAS
• AS8554 TAS France SAS
• AS207758 Hosteur SA

Downstream networks

• AS48809 Hosteur SAS

Adjacent networks

• AS34177 Celeste SAS
• AS8218 Zayo Infrastructure France SA
• AS6461 Zayo Bandwidth
• AS174 Cogent Communications, LLC
• AS3356 Level 3 Parent, LLC
• AS21351 Canal + Telecom SAS
• AS8554 TAS France SAS
• AS48809 Hosteur SAS
• AS207758 Hosteur SA

Routing security

• RPKI: 8 valid, 0 invalid and 7 not-found announcements; 12 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 20 route objects.
• Listed in as-sets: AS-ALPINEDC, AS-CPLUSTELECOM, AS-HOSTEUR, AS-HOSTEUR-TDF, AS-HURRICANEV6, AS-TRANSROUTE-SPEC, AS43100:AS-MEMBERS:AS-LYN-RS, AS8218:AS-CUSTOMERS.