AS203434 — OPEN-CIRCLE Open Circle AG

AS203434 announces 2 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

OPEN-CIRCLE is operated by Open Circle AG.

What it's used for

• The address space carries corporate and cloud infrastructure, evidenced by netnames CH-OPEN-CIRCLE-20190214 and CH-OPEN-CIRCLE-20160115 registered to Open Circle AG.
• The AS announces 2048 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, while maintaining 50 observed neighbours; this ratio of limited address space against a high neighbour count indicates a transit or interconnection role rather than a large-scale access network.
• Traffic from this AS consists of web and API endpoints, virtual servers, and managed workstations for small and medium-sized enterprises, supporting the company's "Swiss Business Cloud" and digital sovereignty services.

Notable

• Registrants for both announced IPv4 prefixes are Open Circle AG, matching the AS holder and confirming direct ownership of the address space.
• Open Circle AG was founded in 2001 as Young Solutions AG and has since evolved into a provider of modular IT solutions and cloud infrastructure for Swiss businesses.
• The inventory consists of two /22 IPv4 blocks and a single /29 IPv6 prefix, representing a compact, internally managed corporate estate.

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

Announced prefixes

• 45.66.232.0/22
• 185.134.164.0/22
• 2a00:b0a0::/29

Upstream networks

• AS39040 NTS workspace AG
• AS15576 NTS workspace AG
• AS59414 cloudscale.ch AG
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS34019 Hivane Association
• AS48362 Stadtwerke Feldkirch
• AS1836 green.ch AG
• AS33891 Core-Backbone GmbH
• AS34927 iFog GmbH
• AS9002 RETN Limited

Adjacent networks

• AS39040 NTS workspace AG
• AS15576 NTS workspace AG
• AS59414 cloudscale.ch AG
• AS6939 Hurricane Electric LLC
• AS48362 Stadtwerke Feldkirch
• AS34019 Hivane Association
• AS1836 green.ch AG
• AS24482 SG.GS
• AS33891 Core-Backbone GmbH
• AS9002 RETN Limited
• AS34927 iFog GmbH

Routing security

• RPKI: 13 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 92% of announcements registered; 18 route objects.
• Listed in as-sets: AS-CLOUDSCALE, AS-HURRICANEV6, AS-YOUNGSOLUTIONS, AS15576:AS-CUSTOMER, AS15576:AS-CUSTOMER:AS203434, AS203434:AS-OPENCIRCLE, AS39040:AS-CUSTOMER, AS39040:AS-CUSTOMER:AS203434, AS42476:AS-SWISSIX-CONNECTED.

Internet exchanges

• SwissIX — Zurich, Switzerland