AS212424 — VIAREZO Association des Reseaux de CentraleSupelec

AS212424 announces 2 IPv4 prefixes covering 8,448 addresses and 1 IPv6 prefixes.

About this network

The AS handle VIAREZO is operated by ViaRézo (Association des Réseaux de CentraleSupélec).

What it's used for

• The address space carries institutional and research traffic, evidenced by the netname ECP associated with the registrant Centralesupelec EPSCP and the netname IP-VR associated with the Association des Réseaux de CentraleSupélec.
• The AS announces 8,448 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 50 observed neighbours; this ratio of modest address space to a high number of peering partners indicates a transit or interconnection role rather than a large-scale access network.
• As a non-profit association supporting the network infrastructure of CentraleSupélec, the traffic consists of institutional data, research connectivity, and academic services for the engineering school.

Notable

• Registrants align with the announcer, with Centralesupelec EPSCP listed for the larger block and the Association des Réseaux de CentraleSupélec for the smaller block.
• The inventory is composed of two distinct IPv4 blocks, a /19 and a /24, alongside a single /44 IPv6 prefix, reflecting a segmented internal corporate estate.

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

Announced prefixes

• 138.195.128.0/19
• 192.159.121.0/24
• 2a0c:b641:2f0::/44

Upstream networks

• AS31564 Hexaglobe SAS
• AS6939 Hurricane Electric LLC
• AS33891 Core-Backbone GmbH
• AS9002 RETN Limited
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS50628 Leonix Telecom SAS
• AS20562 Broadband Hosting B.V.
• AS12779 IT.Gate S.p.A.
• AS5405 Inter.link GmbH
• AS34927 iFog GmbH
• AS25091 IP-Max SA

Downstream networks

• AS204515 Association Crans

Adjacent networks

• AS31564 Hexaglobe SAS
• AS6939 Hurricane Electric LLC
• AS204515 Association Crans
• AS33891 Core-Backbone GmbH
• AS34019 Hivane Association
• AS37721 Virtual Technologies & Solutions
• AS50628 Leonix Telecom SAS
• AS24482 SG.GS
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS5405 Inter.link GmbH
• AS20562 Broadband Hosting B.V.
• AS9002 RETN Limited
• AS25091 IP-Max SA

Routing security

• RPKI: 3 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 4 route objects.
• Listed in as-sets: AS-ARCS, AS-FRANCEIX-PAR-LIST, AS-HEXAGLOBE, AS51706:AS-MEMBERS, AS51706:AS-MEMBERS:AS-PAR-RS.

Internet exchanges

• France-IX Paris — Paris, France
• Nine IX — Paris, France
• France-IX Marseille — Marseille, France