AS43366 — OSSO OSSO B.V.

Network type: hosting

AS43366 announces 8 IPv4 prefixes covering 9,728 addresses and 3 IPv6 prefixes.

About this network

OSSO is operated by OSSO B.V.

What it's used for

• The address space carries hosting and network infrastructure, evidenced by reverse DNS entries like osso.network and osso.nl, and netnames such as NL-OSSOBV-20090327 and OSSO-OSPF-LB.
• With 9,728 IPv4 addresses announced across 12 prefixes and 117 observed neighbours, the ratio indicates a transit or peering-heavy role rather than a large residential access network.
• Traffic from this AS consists of web/API endpoints, cloud infrastructure, and network engineering services, as OSSO specializes in open source hosting, network, and cloud infrastructure development and operations.

Notable

• Registrants largely agree with the announcer, with most prefixes registered to OSSO B.V. or OSSO NOC, though some blocks are registered to Exception B.V. and Ark B Holding B.V..
• The address inventory is finely subdivided into multiple /22 and /23 blocks, consistent with an internal corporate estate or segmented hosting infrastructure rather than a single contiguous allocation.

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

Announced prefixes

• 91.194.224.0/23
• 185.12.144.0/22
• 185.37.124.0/22
• 185.79.8.0/22
• 185.159.136.0/22
• 195.28.22.0/23
• 195.88.160.0/23
• 217.21.192.0/20
• 2a00:8080::/32
• 2a05:6c80::/29
• 2a07:b440::/29

Upstream networks

• AS2914 NTT America, Inc.
• AS6830 Liberty Global Europe Holding B.V.
• AS6939 Hurricane Electric LLC
• AS34019 Hivane Association
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS37721 Virtual Technologies & Solutions
• AS34927 iFog GmbH
• AS4657 StarHub Ltd
• AS12779 IT.Gate S.p.A.
• AS3216 PJSC "Vimpelcom"
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS50673 Serverius Holding B.V.
• AS48362 Stadtwerke Feldkirch
• AS9002 RETN Limited
• AS25091 IP-Max SA
• AS17639 Converge ICT Solutions Inc.
• AS213241 TECHIT.BE SRL

Downstream networks

• AS203135 CTNET B.V.
• AS41153 Gamma Communications Nederland B.V.
• AS201791 Devhouse Spindle B.V.
• AS60880 Horizon Telecom B.V.
• AS202606 Fiber Noord BV
• AS44439 Deksel Enterprises B.V.
• AS208209 MobielWerkt B.V.
• AS218967 2Hip Consultancy B.V.
• AS215914 NetGrid Holding B.V.
• AS209495 Stichting RTV Noord
• AS204751 MobielWerkt B.V.

Adjacent networks

• AS2914 NTT America, Inc.
• AS6830 Liberty Global Europe Holding B.V.
• AS6939 Hurricane Electric LLC
• AS203135 CTNET B.V.
• AS41153 Gamma Communications Nederland B.V.
• AS201791 Devhouse Spindle B.V.
• AS60880 Horizon Telecom B.V.
• AS202606 Fiber Noord BV
• AS44439 Deksel Enterprises B.V.
• AS208209 MobielWerkt B.V.
• AS218967 2Hip Consultancy B.V.
• AS215914 NetGrid Holding B.V.
• AS209495 Stichting RTV Noord
• AS50300 CustodianDC Limited
• AS12779 IT.Gate S.p.A.
• AS3216 PJSC "Vimpelcom"
• AS12552 GlobalConnect AB
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS48185 team.blue NV
• AS3333 Reseaux IP Europeens Network Coordination Centre (RIPE NCC)
• AS34019 Hivane Association
• AS24482 SG.GS
• AS204751 MobielWerkt B.V.
• AS34927 iFog GmbH

Routing security

• RPKI: 11 valid, 0 invalid and 1 not-found announcements; 34 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 12 route objects.
• Listed in as-sets: AS-31576-PEERS, AS-CAMBRIUM-AMSIX-RS-DENY, AS-HIBERNIA-IV, AS-HWNG-DOWNSTREAMS, AS-OSSO, AS-XO-B, AS1200:AS-AMS-IX-PEERS, AS43366:AS-OSSO, AS5580:AS-HIBERNIA-IV, AS61180:AS-PEERS-AMSIX, AS6777:AS-AMS-IX-RS, AS6777:AS-AMS-IX-RS-V6, AS680:AS-AMSIX-RS-PEERS.

Internet exchanges

• AMS-IX Amsterdam — Amsterdam, Netherlands
• The Frys Internet Exchange — Frysian, Netherlands