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

AS50673 · SERVERIUS-AS

Serverius Holding B.V.

AS50673 is operated by Serverius Holding B.V. and serves as a major transit provider, established in the Netherlands in 2010. The system announces a respectable 60 672 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in the Netherlands, with additional presence in the United Kingdom and Ukraine, and smaller footprints in 7 additional countries. This AS has recently updated its prefix announcements.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #10 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
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
118 / 66
IPv6 Prefixes (raw / aggregated)
131 / 14
IPv4 Addresses
60 672
Largest IPv4 Prefix
/19 (8 192 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇳🇱 Netherlands (52 224 IPs), 🇬🇧 United Kingdom (3 584 IPs), 🇺🇦 Ukraine (2 816 IPs) and 7 more
Prefix Changed
October 21, 2026

Reputation

Reputation
Good — 16 flagged IPs out of 60 672 total (0.03%)
Open Proxies
1 known open proxies in this network

Connectivity Summary

Upstream Providers
6 upstreams providing transit
Peers
1 141 networks exchanging traffic without transit
Downstream Customers
91 downstreams buying transit
Unclassified
63 unclassified BGP neighbors
Degree
1 301 unique BGP neighbors
Reach
151 networks in customer cone

Upstream Providers (6)

  • AS174 — COGENT-174 (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 (118 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))
  • 5.178.64.0/21 (2 048 addresses (/21 prefix))
  • 46.175.144.0/21 (2 048 addresses (/21 prefix))
  • 93.158.200.0/21 (2 048 addresses (/21 prefix))
  • 178.21.16.0/21 (2 048 addresses (/21 prefix))
  • 5.188.12.0/22 (1 024 addresses (/22 prefix))
  • 45.94.200.0/22 (1 024 addresses (/22 prefix))
  • 45.141.28.0/22 (1 024 addresses (/22 prefix))
  • 45.156.48.0/22 (1 024 addresses (/22 prefix))
  • 88.218.132.0/22 (1 024 addresses (/22 prefix))
  • 160.20.152.0/22 (1 024 addresses (/22 prefix))
  • 176.117.72.0/22 (1 024 addresses (/22 prefix))
  • 185.8.176.0/22 (1 024 addresses (/22 prefix))
  • 185.12.12.0/22 (1 024 addresses (/22 prefix))
  • 185.53.160.0/22 (1 024 addresses (/22 prefix))
  • 185.79.112.0/22 (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))
  • 185.254.172.0/22 (1 024 addresses (/22 prefix))
  • 194.107.76.0/22 (1 024 addresses (/22 prefix))
  • 31.42.188.0/23 (512 addresses (/23 prefix))
  • 91.195.80.0/23 (512 addresses (/23 prefix))
  • 91.219.62.0/23 (512 addresses (/23 prefix))
  • 185.89.132.0/23 (512 addresses (/23 prefix))
  • 194.4.14.0/23 (512 addresses (/23 prefix))
  • 194.4.154.0/23 (512 addresses (/23 prefix))
  • 31.43.163.0/24 (256 addresses (/24 prefix))
  • 45.148.141.0/24 (256 addresses (/24 prefix))
  • 45.155.7.0/24 (256 addresses (/24 prefix))
  • 77.83.102.0/24 (256 addresses (/24 prefix))
  • 82.41.2.0/24 (256 addresses (/24 prefix))
  • 84.246.80.0/24 (256 addresses (/24 prefix))
  • 85.204.127.0/24 (256 addresses (/24 prefix))
  • 87.236.164.0/24 (256 addresses (/24 prefix))
  • 88.218.28.0/24 (256 addresses (/24 prefix))
  • 88.218.30.0/24 (256 addresses (/24 prefix))
  • 89.33.163.0/24 (256 addresses (/24 prefix))
  • 89.117.24.0/24 (256 addresses (/24 prefix))
  • 91.198.77.0/24 (256 addresses (/24 prefix))
  • 91.199.167.0/24 (256 addresses (/24 prefix))
  • 91.200.147.0/24 (256 addresses (/24 prefix))
  • 91.208.52.0/24 (256 addresses (/24 prefix))
  • 91.213.69.0/24 (256 addresses (/24 prefix))
  • 91.220.37.0/24 (256 addresses (/24 prefix))
  • 91.221.69.0/24 (256 addresses (/24 prefix))
  • 91.247.181.0/24 (256 addresses (/24 prefix))
  • 93.185.163.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (131 total)

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