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AS20860 IOMART-AS IOMART CLOUD SERVICES LIMITED

IOMART-AS IOMART CLOUD SERVICES LIMITED · registered in the United Kingdom

IPv4 addresses379,136249 prefixes · 0.012% of announced IPv4
Rank in United Kingdom#20largest network in GB by IPv4 space, of 2,074 · 0.56% of GB
Rank worldwide#690of 79,396 networks with IPv4
IPv617 x /32 (1,114,689 x /48)17 prefixes
CountryUnited Kingdom2,261 ASNs registered there

IPv4 prefixes

All 249 prefixes, in address order.

  • 5.77.32.0/22
  • 5.77.36.0/23
  • 5.77.38.0/24
  • 5.77.40.0/22
  • 5.77.44.0/23
  • 5.77.46.0/24
  • 5.77.48.0/22
  • 5.77.52.0/23
  • 5.77.54.0/24
  • 5.77.56.0/22
  • 5.77.60.0/23
  • 5.133.176.0/21
  • 5.152.192.0/19
  • 5.159.224.0/21
  • 5.183.102.0/24
  • 5.187.16.0/21
  • 5.187.25.0/24
  • 5.187.26.0/24
  • 5.187.29.0/24
  • 5.187.31.0/24
  • 31.3.224.0/19
  • 31.24.32.0/23
  • 31.24.34.0/24
  • 31.24.35.0/24
  • 31.24.36.0/24
  • 31.24.37.0/24
  • 31.24.38.0/23
  • 31.58.214.0/24
  • 31.187.70.0/23
  • 31.216.48.0/22
  • 31.216.52.0/24
  • 31.216.53.0/24
  • 31.216.54.0/23
  • 37.128.184.0/21
  • 37.157.240.0/22
  • 37.157.244.0/22
  • 37.220.0.0/19
  • 46.20.224.0/20
  • 62.128.192.0/19
  • 62.233.64.0/18
  • 77.240.0.0/20
  • 77.245.64.0/20
  • 77.246.160.0/21
  • 77.246.168.0/23
  • 77.246.170.0/23
  • 77.246.172.0/23
  • 77.246.174.0/24
  • 77.246.175.0/24
  • 78.129.128.0/17
  • 79.143.80.0/22
  • 79.171.32.0/21
  • 80.75.64.0/21
  • 80.75.72.0/22
  • 80.75.76.0/24
  • 80.75.78.0/23
  • 80.84.48.0/23
  • 80.84.50.0/23
  • 80.84.52.0/22
  • 80.84.56.0/21
  • 80.243.176.0/20
  • 81.94.192.0/20
  • 81.168.83.0/24
  • 81.168.119.0/24
  • 82.102.8.0/24
  • 82.102.10.0/23
  • 82.102.12.0/23
  • 82.145.32.0/23
  • 82.145.34.0/24
  • 82.145.36.0/22
  • 82.145.40.0/21
  • 82.145.48.0/20
  • 83.98.196.0/24
  • 83.142.224.0/22
  • 83.142.228.0/23
  • 83.142.230.0/24
  • 84.22.160.0/19
  • 85.232.32.0/19
  • 87.117.192.0/18
  • 87.237.56.0/21
  • 88.150.128.0/21
  • 88.150.136.0/23
  • 88.150.138.0/23
  • 88.150.140.0/22
  • 88.150.144.0/21
  • 88.150.152.0/23
  • 88.150.154.0/24
  • 88.150.155.0/24
  • 88.150.156.0/22
  • 88.150.160.0/19
  • 88.150.192.0/21
  • 88.150.200.0/22
  • 88.150.204.0/23
  • 88.150.206.0/24
  • 88.150.207.0/24
  • 88.150.208.0/21
  • 88.150.216.0/22
  • 88.150.220.0/24
  • 88.150.221.0/24
  • 88.150.222.0/23
  • 88.150.224.0/22
  • 88.150.228.0/23
  • 88.150.230.0/24
  • 88.150.231.0/24
  • 88.150.232.0/21
  • 88.150.240.0/23
  • 88.150.242.0/23
  • 88.150.244.0/22
  • 88.150.248.0/22
  • 88.150.252.0/23
  • 88.150.254.0/23
  • 89.43.47.0/24
  • 89.207.170.0/23
  • 89.207.172.0/22
  • 91.199.151.0/24
  • 91.207.220.0/23
  • 91.215.180.0/22
  • 91.234.184.0/23
  • 91.235.170.0/24
  • 91.245.218.0/24
  • 91.246.8.0/23
  • 91.246.11.0/24
  • 91.246.49.0/24
  • 91.247.177.0/24
  • 92.63.128.0/20
  • 93.174.10.0/23
  • 93.174.12.0/24
  • 95.129.104.0/21
  • 95.154.192.0/18
  • 107.181.136.0/24
  • 109.73.64.0/20
  • 109.75.160.0/24
  • 109.75.165.0/24
  • 109.75.166.0/23
  • 109.122.1.0/24
  • 109.169.0.0/19
  • 109.169.32.0/20
  • 109.169.48.0/21
  • 109.169.56.0/22
  • 109.169.60.0/23
  • 109.169.62.0/24
  • 109.169.64.0/21
  • 109.169.73.0/24
  • 109.169.74.0/23
  • 109.169.76.0/22
  • 109.169.81.0/24
  • 109.169.82.0/23
  • 109.169.84.0/22
  • 109.169.88.0/21
  • 109.200.0.0/20
  • 109.200.16.0/21
  • 109.200.24.0/22
  • 109.200.28.0/23
  • 109.200.30.0/24
  • 109.200.31.0/24
  • 109.203.103.0/24
  • 109.203.106.0/24
  • 109.203.108.0/24
  • 109.203.110.0/24
  • 109.203.112.0/24
  • 109.203.115.0/24
  • 109.203.117.0/24
  • 109.203.127.0/24
  • 130.180.200.0/21
  • 130.185.144.0/21
  • 141.0.160.0/21
  • 141.98.60.0/22
  • 141.98.158.0/23
  • 149.3.128.0/20
  • 149.255.96.0/20
  • 162.220.245.0/24
  • 163.5.94.0/24
  • 176.123.50.0/24
  • 176.227.192.0/20
  • 176.227.208.0/21
  • 176.227.216.0/21
  • 178.250.48.0/21
  • 179.61.169.0/24
  • 181.214.140.0/24
  • 185.5.0.0/22
  • 185.5.188.0/24
  • 185.17.148.0/22
  • 185.19.16.0/22
  • 185.20.96.0/22
  • 185.25.240.0/22
  • 185.26.148.0/23
  • 185.26.150.0/24
  • 185.34.252.0/23
  • 185.35.77.0/24
  • 185.53.172.0/22
  • 185.91.76.0/22
  • 185.161.16.0/23
  • 185.161.18.0/24
  • 185.162.108.0/24
  • 185.162.110.0/24
  • 185.166.86.0/24
  • 185.179.216.0/24
  • 185.179.252.0/22
  • 185.181.124.0/22
  • 185.182.228.0/22
  • 185.184.248.0/24
  • 185.196.23.0/24
  • 185.201.60.0/22
  • 185.214.101.0/24
  • 185.227.60.0/22
  • 185.235.166.0/24
  • 185.245.118.0/23
  • 185.249.120.0/22
  • 188.65.176.0/21
  • 188.227.160.0/21
  • 188.227.168.0/22
  • 188.227.172.0/23
  • 188.227.174.0/24
  • 188.227.175.0/24
  • 188.227.176.0/21
  • 188.227.184.0/23
  • 188.227.186.0/24
  • 188.227.187.0/24
  • 188.227.188.0/22
  • 191.96.208.0/24
  • 193.7.195.0/24
  • 193.37.72.0/22
  • 193.200.98.0/23
  • 193.201.200.0/23
  • 193.254.210.0/23
  • 194.1.150.0/24
  • 195.10.213.0/24
  • 195.62.10.0/23
  • 195.177.192.0/23
  • 196.19.240.0/24
  • 196.19.249.0/24
  • 212.38.160.0/20
  • 212.38.178.0/23
  • 212.38.180.0/22
  • 212.38.185.0/24
  • 212.38.188.0/22
  • 212.84.160.0/20
  • 212.84.176.0/21
  • 212.84.184.0/23
  • 212.84.187.0/24
  • 212.84.188.0/22
  • 213.139.72.0/24
  • 213.175.200.0/23
  • 213.175.203.0/24
  • 213.175.205.0/24
  • 213.175.211.0/24
  • 217.77.176.0/20
  • 217.147.80.0/20
  • 217.194.208.0/20
  • 217.199.255.0/24

IPv6 prefixes

All 17 prefixes.

  • 2001:1b40::/32
  • 2a00:5d80::/32
  • 2a01:61c0::/40
  • 2a02:8c8::/32
  • 2a02:b10:1::/48
  • 2a02:2658::/35
  • 2a02:2658:2000::/36
  • 2a02:2658:3000::/36
  • 2a02:2658:4000::/34
  • 2a02:2658:8000::/33
  • 2a02:7f40::/32
  • 2a03:b200::/29
  • 2a03:ca80::/31
  • 2a04:de40::/42
  • 2a0b:4580::/32
  • 2a0c:4380::/40
  • 2a12:2201::/32

Similar-sized networks in United Kingdom

ASNNameIPv4 addresses
AS42689#17 Glide Glide Student & Residential Limited499,200
AS8851#18 EDGE GCI Network Solutions Limited417,792
AS15395#19 RACKSPACE-LON Rackspace Ltd.402,176
AS8468#21 ENTANET Cityfibre Limited358,400
AS62240#22 Clouvider Clouvider Limited339,968
AS25180#23 EXPONENTIAL-E-AS Exponential-E Ltd.291,328

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