AS57626 — E-Zorg E-Zorg B.V.

AS57626 announces 2 IPv4 prefixes covering 3,072 addresses and 1 IPv6 prefixes.

About this network

E-ZORG is operated by E-Zorg B.V.

What it's used for

• The address space carries corporate infrastructure for a Dutch healthcare provider, as indicated by the registrant E-Zorg B.V. and netnames NL-E-ZORG-20111215 and NL-E-ZORG-20190930.
• The AS announces 3072 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 47 observed neighbours. This ratio of limited address space against a high number of peering partners suggests a transit or interconnection-heavy role rather than a large-scale access network.
• Traffic from this AS consists of internal corporate communications, web endpoints, and API services supporting E-Zorg's healthcare operations, including patient data management and insurance services.

Notable

• Registrants for both announced prefixes are E-Zorg B.V., which aligns directly with the AS holder.
• The address inventory is compact, consisting of one /21 and one /22 block, indicating a focused corporate estate rather than a broad consumer base.

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

Announced prefixes

• 37.9.216.0/21
• 45.158.240.0/22
• 2a07:b700::/29

Upstream networks

• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS205185 Eurofiber Cloud Infra B.V.
• AS48185 team.blue NV
• AS37721 Virtual Technologies & Solutions
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS20485 Joint Stock Company TransTeleCom
• AS37100 SEACOM Limited
• AS50673 Serverius Holding B.V.
• AS17639 Converge ICT Solutions Inc.

Adjacent networks

• AS20562 Broadband Hosting B.V.
• AS24785 Broadband Hosting B.V.
• AS6939 Hurricane Electric LLC
• AS205185 Eurofiber Cloud Infra B.V.
• AS204092 Association GRIFON
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS24482 SG.GS
• AS48185 team.blue NV
• AS37721 Virtual Technologies & Solutions
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS50673 Serverius Holding B.V.
• AS17639 Converge ICT Solutions Inc.

Routing security

• RPKI: 9 valid, 0 invalid and 0 not-found announcements; 7 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-DCSPINE, AS-GTTCUST, AS-GTTCUST6, AS-JOINTTRANSIT, AS-KPN, AS-NBIP, AS-NBIP6, AS-NEDAP-PEERS, AS-OPENPEERING, AS200020:AS-NBIP, AS200020:AS-NBIP-TEST.

Internet exchanges

• Neutral Internet Exchange — Amsterdam, Netherlands