$ query “AS43366” --type=asn → 1 result(s)
AS43366 · OSSO
OSSO B.V.
AS43366 is run by OSSO B.V. and is a mid-size transit provider, established in the Netherlands in 2007. The system announces 9 728 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the Netherlands, with additional presence in the United Kingdom.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇳🇱 Netherlands
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- July 20, 2007
- Last Changed
- March 04, 2026
- Last Seen
- April 30, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 9 / 8
- IPv6 Prefixes (raw / aggregated)
- 3 / 3
- IPv4 Addresses
- 9 728
- Largest IPv4 Prefix
- /20 (4 096 addresses)
- Largest IPv6 Prefix
- /29
- Geolocated Countries
- 🇳🇱 Netherlands (19 456 IPs), 🇬🇧 United Kingdom (256 IPs)
- Prefix Changed
- March 13, 2026
Reputation
- Reputation
- Good — 1 flagged IPs out of 9 728 total (0.01%)
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Peers
- 98 networks exchanging traffic without transit
- Downstream Customers
- 11 downstreams buying transit
- Unclassified
- 4 unclassified BGP neighbors
- Degree
- 115 unique BGP neighbors
- Reach
- 14 networks in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (9 total)
- 217.21.192.0/20 (4 096 addresses (/20 prefix))
- 185.12.144.0/22 (1 024 addresses (/22 prefix))
- 185.37.124.0/22 (1 024 addresses (/22 prefix))
- 185.79.8.0/22 (1 024 addresses (/22 prefix))
- 185.159.136.0/22 (1 024 addresses (/22 prefix))
- 91.194.224.0/23 (512 addresses (/23 prefix))
- 195.28.22.0/23 (512 addresses (/23 prefix))
- 195.88.160.0/23 (512 addresses (/23 prefix))
IPv6 Prefixes (3 total)
- 2a05:6c80::/29
- 2a07:b440::/29
- 2a00:8080::/32