$ query “AS50673” --type=asn → 1 result(s)

AS50673 · SERVERIUS-AS

Serverius Holding B.V.

AS50673 is run by Serverius Holding B.V. and is a major transit provider, established in the Netherlands in 2010. The system announces a respectable 60 416 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the Netherlands, with additional presence in the United Kingdom and Ukraine, and smaller footprints in 8 additional countries. This AS has recently updated its prefix announcements.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #2 in Netherlands — Top 10 by reach within country

Basic Information

Country
🇳🇱 Netherlands
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
September 07, 2010
Last Changed
March 04, 2026
Last Seen
May 18, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
117 / 65
IPv6 Prefixes (raw / aggregated)
133 / 14
IPv4 Addresses
60 416
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇳🇱 Netherlands (86 416 IPs), 🇬🇧 United Kingdom (7 168 IPs), 🇺🇦 Ukraine (5 376 IPs) and 8 more
Prefix Changed
May 16, 2026

Reputation

Reputation
Good — 9 flagged IPs out of 60 416 total (0.01%)

Connectivity Summary

Upstream Providers
6 upstreams providing transit
Peers
1 124 networks exchanging traffic without transit
Downstream Customers
92 downstreams buying transit
Unclassified
88 unclassified BGP neighbors
Degree
1 310 unique BGP neighbors
Reach
34 691 networks in customer cone

Upstream Providers (6)

  • AS174 — COGENT (Tier-1 transit)
  • AS9002 — RETN-AS
  • AS6762 — SEABONE-NET (Tier-1 transit)
  • AS6453 — AS6453 (Tier-1 transit)
  • AS6830 — LIBERTYGLOBAL (Tier-1 transit)
  • AS33891 — CORE-BACKBONE

Prefix Lists

IPv4 Prefixes (117 total)

  • 5.255.64.0/19 (8 192 addresses (/19 prefix))
  • 46.249.32.0/19 (8 192 addresses (/19 prefix))
  • 93.158.208.0/20 (4 096 addresses (/20 prefix))
  • 178.19.112.0/20 (4 096 addresses (/20 prefix))
  • 46.175.144.0/21 (2 048 addresses (/21 prefix))
  • 178.21.16.0/21 (2 048 addresses (/21 prefix))
  • 93.158.200.0/21 (2 048 addresses (/21 prefix))
  • 5.178.64.0/21 (2 048 addresses (/21 prefix))
  • 45.94.200.0/22 (1 024 addresses (/22 prefix))
  • 185.12.12.0/22 (1 024 addresses (/22 prefix))
  • 185.116.164.0/22 (1 024 addresses (/22 prefix))
  • 185.193.216.0/22 (1 024 addresses (/22 prefix))
  • 45.141.28.0/22 (1 024 addresses (/22 prefix))
  • 185.79.112.0/22 (1 024 addresses (/22 prefix))
  • 185.53.160.0/22 (1 024 addresses (/22 prefix))
  • 45.156.48.0/22 (1 024 addresses (/22 prefix))
  • 185.8.176.0/22 (1 024 addresses (/22 prefix))
  • 185.254.172.0/22 (1 024 addresses (/22 prefix))
  • 194.107.76.0/22 (1 024 addresses (/22 prefix))
  • 88.218.132.0/22 (1 024 addresses (/22 prefix))
  • 176.117.72.0/22 (1 024 addresses (/22 prefix))
  • 160.20.152.0/22 (1 024 addresses (/22 prefix))
  • 5.188.12.0/22 (1 024 addresses (/22 prefix))
  • 185.89.132.0/23 (512 addresses (/23 prefix))
  • 91.195.80.0/23 (512 addresses (/23 prefix))
  • 31.42.188.0/23 (512 addresses (/23 prefix))
  • 194.4.154.0/23 (512 addresses (/23 prefix))
  • 194.4.14.0/23 (512 addresses (/23 prefix))
  • 91.219.62.0/23 (512 addresses (/23 prefix))
  • 87.236.164.0/24 (256 addresses (/24 prefix))
  • 84.246.80.0/24 (256 addresses (/24 prefix))
  • 91.247.181.0/24 (256 addresses (/24 prefix))
  • 91.198.77.0/24 (256 addresses (/24 prefix))
  • 91.220.37.0/24 (256 addresses (/24 prefix))
  • 93.185.163.0/24 (256 addresses (/24 prefix))
  • 94.247.214.0/24 (256 addresses (/24 prefix))
  • 103.42.240.0/24 (256 addresses (/24 prefix))
  • 109.72.125.0/24 (256 addresses (/24 prefix))
  • 146.185.253.0/24 (256 addresses (/24 prefix))
  • 147.78.121.0/24 (256 addresses (/24 prefix))
  • 89.117.24.0/24 (256 addresses (/24 prefix))
  • 89.33.163.0/24 (256 addresses (/24 prefix))
  • 88.218.28.0/24 (256 addresses (/24 prefix))
  • 88.218.17.0/24 (256 addresses (/24 prefix))
  • 91.199.167.0/24 (256 addresses (/24 prefix))
  • 85.204.127.0/24 (256 addresses (/24 prefix))
  • 91.221.69.0/24 (256 addresses (/24 prefix))
  • 185.67.0.0/24 (256 addresses (/24 prefix))
  • 82.41.2.0/24 (256 addresses (/24 prefix))
  • 77.83.102.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (133 total)

  • 2a06:8000::/29
  • 2a0e:c9c0::/29
  • 2a09:4d41::/32
  • 2a00:1ca8::/32
  • 2a00:1caa::/32
  • 2a02:1680::/32
  • 2a03:3f40::/32
  • 2a09:aa80::/32
  • 2a0a:3f40::/32
  • 2a0c:5140::/32
  • 2001:7f8:b7::/48
  • 2001:67c:1330::/48
  • 2001:67c:b0::/48
  • 2001:67c:e98::/48