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AS40021 Contabo Inc.

CONTABO-40021 - Contabo Inc. · registered in the United States

IPv4 addresses151,55263 prefixes · 0.005% of announced IPv4
Rank in United States#407largest network in US by IPv4 space, of 18,338 · 0.01% of US
Rank worldwide#1,317of 79,396 networks with IPv4
IPv65 x /32 (327,680 x /48)2 prefixes
CountryUnited States18,679 ASNs registered there
Open AS40021 in ASN lookup Look up an IP in this network (5.180.151.1) All networks in United States

IPv4 prefixes

All 63 prefixes, in address order.

  • 5.180.151.0/24
  • 5.252.52.0/22
  • 13.140.32.0/20
  • 13.140.224.0/20
  • 13.140.240.0/21
  • 31.220.96.0/21
  • 38.105.209.0/24
  • 38.105.232.0/24
  • 45.137.192.0/24
  • 45.137.194.0/24
  • 62.146.168.0/21
  • 62.146.176.0/21
  • 62.146.224.0/21
  • 66.94.96.0/19
  • 80.190.72.0/21
  • 81.22.38.0/24
  • 82.197.64.0/22
  • 85.239.230.0/23
  • 85.239.232.0/21
  • 85.239.240.0/21
  • 85.239.248.0/23
  • 85.239.250.0/24
  • 86.48.16.0/20
  • 89.117.16.0/21
  • 89.117.72.0/21
  • 89.117.144.0/21
  • 92.118.56.0/22
  • 94.72.112.0/20
  • 94.101.113.0/24
  • 109.236.60.0/24
  • 144.126.128.0/19
  • 147.93.0.0/21
  • 147.93.128.0/20
  • 147.93.144.0/22
  • 147.93.150.0/24
  • 147.93.176.0/20
  • 154.12.224.0/19
  • 154.38.160.0/19
  • 154.53.32.0/19
  • 157.173.192.0/20
  • 164.5.254.0/23
  • 176.57.165.0/24
  • 185.111.156.0/24
  • 185.187.235.0/24
  • 194.113.67.0/24
  • 194.140.196.0/22
  • 194.238.24.0/21
  • 195.26.240.0/20
  • 207.244.224.0/19
  • 209.126.0.0/20
  • 209.126.70.0/24
  • 209.126.77.0/24
  • 209.126.79.0/24
  • 209.126.80.0/21
  • 209.145.48.0/20
  • 212.28.176.0/20
  • 212.56.32.0/20
  • 217.77.0.0/20
  • 217.216.40.0/21
  • 217.216.48.0/21
  • 217.216.62.0/24
  • 217.216.64.0/22
  • 217.216.80.0/20

IPv6 prefixes

All 2 prefixes.

  • 2605:a140::/30
  • 2605:a144::/32

Similar-sized networks in United States

ASNNameIPv4 addresses
AS13371#404 DUKE-INTERCHANGE - Duke University151,808
AS26658#405 HENGTONG-IDC-LLC - HT151,808
AS20454#406 SSASN2 - SECURED SERVERS LLC151,744
AS13428#408 SURFAIRWIRELESS-IN-02 - Surf Air Wireless, LLC151,296
AS6099#409 BAE-NET-ASN - Alameda County Office of Education151,040
AS154395#410 RACKDOGLLC-AS-AP - Rackdog LLC151,040

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources