$ query “AS57866” --type=asn → 1 result(s)

AS57866 · FUSIX-AS

Fusix Networks B.V.

AS57866 is run by Fusix Networks B.V. and is a major transit provider, based in the Netherlands since 2012. The system announces 9 728 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in the Netherlands, with additional presence in Belgium and Gibraltar.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇳🇱 Netherlands
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
February 28, 2012
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
16 / 16
IPv6 Prefixes (raw / aggregated)
5 / 5
IPv4 Addresses
9 728
Largest IPv4 Prefix
/21 (2 048 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇳🇱 Netherlands (15 360 IPs), 🇧🇪 Belgium (512 IPs), 🇬🇮 Gibraltar (256 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
7 upstreams providing transit
Peers
75 networks exchanging traffic without transit
Downstream Customers
79 downstreams buying transit
Unclassified
3 unclassified BGP neighbors
Degree
164 unique BGP neighbors
Reach
185 networks in customer cone

Upstream Providers (7)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS3491 — PCCWG-APAC-HK (Tier-1 transit)
  • AS6453 — AS6453 (Tier-1 transit)
  • AS5511 — OPENTRANSIT (Tier-1 transit)
  • AS6830 — LIBERTYGLOBAL (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (16 total)

  • 37.139.136.0/21 (2 048 addresses (/21 prefix))
  • 185.52.236.0/22 (1 024 addresses (/22 prefix))
  • 193.187.120.0/22 (1 024 addresses (/22 prefix))
  • 45.141.104.0/22 (1 024 addresses (/22 prefix))
  • 45.149.8.0/22 (1 024 addresses (/22 prefix))
  • 185.242.64.0/22 (1 024 addresses (/22 prefix))
  • 176.61.132.0/24 (256 addresses (/24 prefix))
  • 176.61.131.0/24 (256 addresses (/24 prefix))
  • 31.58.33.0/24 (256 addresses (/24 prefix))
  • 185.21.48.0/24 (256 addresses (/24 prefix))
  • 185.30.206.0/24 (256 addresses (/24 prefix))
  • 85.208.60.0/24 (256 addresses (/24 prefix))
  • 185.114.236.0/24 (256 addresses (/24 prefix))
  • 46.226.126.0/24 (256 addresses (/24 prefix))
  • 45.88.65.0/24 (256 addresses (/24 prefix))
  • 212.18.112.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (5 total)

  • 2a0c:c080::/29
  • 2a11:7b80::/29
  • 2a14:c200::/29
  • 2a00:a7c0::/32
  • 2a13:ea80:4588::/48