AS202796 — JSR-IT-BV JSR IT B.V.

AS202796 announces 4 IPv4 prefixes covering 2,816 addresses and 2 IPv6 prefixes.

About this network

JSR-IT-BV is operated by JSR IT B.V.

What it's used for

• The address space carries hosting infrastructure, evidenced by reverse DNS entries such as hosted-by.jsr-it.nl and hosted.by.jsr.cloud.
• The AS announces 2,816 IPv4 addresses across 4 prefixes and 2 IPv6 prefixes, with only 2 observed routing neighbours, indicating a hosting or service provider role rather than transit.
• Traffic from this AS consists of web and API endpoints for hosted services, consistent with JSR IT B.V.'s business as a Dutch IT services and hosting provider.

Notable

• Registrants for the largest prefixes are JSR IT B.V., while smaller prefixes are registered to 3MUSK B.V. and Robert Nouwens, suggesting leased or historically acquired address space.
• JSR IT B.V. is the IT division of JSR Life Sciences, a Dutch biotechnology company that acquired Crown Biosciences International in 2015.
• The inventory includes a mix of /22, /23, and /24 prefixes, with the largest block being 185.18.236.0/22.

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

Announced prefixes

• 185.18.236.0/22
• 185.134.56.0/22
• 185.194.250.0/23
• 193.169.171.0/24
• 2a03:fb40::/29
• 2a05:1e80::/29

Upstream networks

• AS8455 atom86 BV
• AS51942 EK-Media B.V.

Adjacent networks

• AS8455 atom86 BV
• AS51942 EK-Media B.V.

Routing security

• RPKI: 7 valid, 0 invalid and 0 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-HURRICANE, AS-JOINTTRANSIT, AS-JOINTTRANSIT-IPV6, AS-JSR, AS-MAXITEL, AS-OPENPEERING, AS-RETN-ACTUAL-V4.

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands
• Speed Internet Exchange — Dronten, Netherlands