Skip to content
InternetData
Log inSign up
HomeAll IP Ranges157.0.0.0/8157.203.0.0/16
65,536 routable1 ASes
/16 subnet

157.203.0.0/16

Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.

157.202.0.0/16157.204.0.0/16
65,536
routable addresses
65,536
geolocated
1
country
1
announcing AS
46
announced prefixes
27
anonymous addresses

Where it is

Addresses IP Geolocation places in each country, as a share of those it places.

  1. United Kingdom65,536 · 100.00%

Who announces it

Each /24 counted for the AS announcing most of it, as a share of the routable addresses.

  1. AS21369Atos IT Services UK Ltd8,704 · 13.28%

What the databases see

Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.

Announced prefixes

Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.

46 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
157.203.6.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.6.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.7.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.36.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.36.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.37.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.40.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.40.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.41.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.42.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.42.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.43.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.48.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.48.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.49.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.52.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.52.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.53.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.56.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.56.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.57.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.58.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.59.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.60.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.60.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.61.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.62.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.62.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.92.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.120.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.120.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.176.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.176.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.177.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.178.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.178.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.179.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.180.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.180.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.181.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.242.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.242.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.243.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.254.0/23AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.254.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02
157.203.255.0/24AS21369Atos IT Services UK LtdUnited Kingdomvalid172026-10-02

Every /24 inside it

157.203.0.0/24United Kingdom—000.00%
157.203.1.0/24United Kingdom—000.00%
157.203.2.0/24United Kingdom—000.00%
157.203.3.0/24United Kingdom—000.00%
157.203.4.0/24United Kingdom—000.00%
157.203.5.0/24United Kingdom—000.00%
157.203.6.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.7.0/24United KingdomAS21369Atos IT Services UK Ltd301.17%
157.203.8.0/24United Kingdom—000.00%
157.203.9.0/24United Kingdom—000.00%
157.203.10.0/24United Kingdom—000.00%
157.203.11.0/24United Kingdom—000.00%
157.203.12.0/24United Kingdom—000.00%
157.203.13.0/24United Kingdom—000.00%
157.203.14.0/24United Kingdom—000.00%
157.203.15.0/24United Kingdom—000.00%
157.203.16.0/24United Kingdom—000.00%
157.203.17.0/24United Kingdom—000.00%
157.203.18.0/24United Kingdom—000.00%
157.203.19.0/24United Kingdom—000.00%
157.203.20.0/24United Kingdom—000.00%
157.203.21.0/24United Kingdom—000.00%
157.203.22.0/24United Kingdom—000.00%
157.203.23.0/24United Kingdom—000.00%
157.203.24.0/24United Kingdom—000.00%
157.203.25.0/24United Kingdom—000.00%
157.203.26.0/24United Kingdom—000.00%
157.203.27.0/24United Kingdom—000.00%
157.203.28.0/24United Kingdom—000.00%
157.203.29.0/24United Kingdom—000.00%
157.203.30.0/24United Kingdom—000.00%
157.203.31.0/24United Kingdom—000.00%
157.203.32.0/24United Kingdom—000.00%
157.203.33.0/24United Kingdom—000.00%
157.203.34.0/24United Kingdom—000.00%
157.203.35.0/24United Kingdom—000.00%
157.203.36.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.37.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.38.0/24United Kingdom—000.00%
157.203.39.0/24United Kingdom—000.00%
157.203.40.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.41.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.42.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.43.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.44.0/24United Kingdom—000.00%
157.203.45.0/24United Kingdom—000.00%
157.203.46.0/24United Kingdom—000.00%
157.203.47.0/24United Kingdom—000.00%
157.203.48.0/24United KingdomAS21369Atos IT Services UK Ltd200.78%
157.203.49.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.50.0/24United Kingdom—000.00%
157.203.51.0/24United Kingdom—000.00%
157.203.52.0/24United KingdomAS21369Atos IT Services UK Ltd702.73%
157.203.53.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.54.0/24United Kingdom—000.00%
157.203.55.0/24United Kingdom—000.00%
157.203.56.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.57.0/24United KingdomAS21369Atos IT Services UK Ltd0256100.00%
157.203.58.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.59.0/24United KingdomAS21369Atos IT Services UK Ltd0256100.00%
157.203.60.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.61.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.62.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.63.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.64.0/24United Kingdom—000.00%
157.203.65.0/24United Kingdom—000.00%
157.203.66.0/24United Kingdom—000.00%
157.203.67.0/24United Kingdom—000.00%
157.203.68.0/24United Kingdom—000.00%
157.203.69.0/24United Kingdom—000.00%
157.203.70.0/24United Kingdom—000.00%
157.203.71.0/24United Kingdom—000.00%
157.203.72.0/24United Kingdom—000.00%
157.203.73.0/24United Kingdom—000.00%
157.203.74.0/24United Kingdom—000.00%
157.203.75.0/24United Kingdom—000.00%
157.203.76.0/24United Kingdom—000.00%
157.203.77.0/24United Kingdom—000.00%
157.203.78.0/24United Kingdom—000.00%
157.203.79.0/24United Kingdom—000.00%
157.203.80.0/24United Kingdom—000.00%
157.203.81.0/24United Kingdom—000.00%
157.203.82.0/24United Kingdom—000.00%
157.203.83.0/24United Kingdom—000.00%
157.203.84.0/24United Kingdom—000.00%
157.203.85.0/24United Kingdom—000.00%
157.203.86.0/24United Kingdom—000.00%
157.203.87.0/24United Kingdom—000.00%
157.203.88.0/24United Kingdom—000.00%
157.203.89.0/24United Kingdom—000.00%
157.203.90.0/24United Kingdom—000.00%
157.203.91.0/24United Kingdom—000.00%
157.203.92.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.93.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.94.0/24United Kingdom—000.00%
157.203.95.0/24United Kingdom—000.00%
157.203.96.0/24United Kingdom—000.00%
157.203.97.0/24United Kingdom—000.00%
157.203.98.0/24United Kingdom—000.00%
157.203.99.0/24United Kingdom—000.00%
157.203.100.0/24United Kingdom—000.00%
157.203.101.0/24United Kingdom—000.00%
157.203.102.0/24United Kingdom—000.00%
157.203.103.0/24United Kingdom—000.00%
157.203.104.0/24United Kingdom—000.00%
157.203.105.0/24United Kingdom—000.00%
157.203.106.0/24United Kingdom—000.00%
157.203.107.0/24United Kingdom—000.00%
157.203.108.0/24United Kingdom—000.00%
157.203.109.0/24United Kingdom—000.00%
157.203.110.0/24United Kingdom—000.00%
157.203.111.0/24United Kingdom—000.00%
157.203.112.0/24United Kingdom—000.00%
157.203.113.0/24United Kingdom—000.00%
157.203.114.0/24United Kingdom—000.00%
157.203.115.0/24United Kingdom—000.00%
157.203.116.0/24United Kingdom—000.00%
157.203.117.0/24United Kingdom—000.00%
157.203.118.0/24United Kingdom—000.00%
157.203.119.0/24United Kingdom—000.00%
157.203.120.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.121.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.122.0/24United Kingdom—000.00%
157.203.123.0/24United Kingdom—000.00%
157.203.124.0/24United Kingdom—000.00%
157.203.125.0/24United Kingdom—000.00%
157.203.126.0/24United Kingdom—000.00%
157.203.127.0/24United Kingdom—000.00%
157.203.128.0/24United Kingdom—000.00%
157.203.129.0/24United Kingdom—000.00%
157.203.130.0/24United Kingdom—000.00%
157.203.131.0/24United Kingdom—000.00%
157.203.132.0/24United Kingdom—000.00%
157.203.133.0/24United Kingdom—000.00%
157.203.134.0/24United Kingdom—000.00%
157.203.135.0/24United Kingdom—000.00%
157.203.136.0/24United Kingdom—000.00%
157.203.137.0/24United Kingdom—000.00%
157.203.138.0/24United Kingdom—000.00%
157.203.139.0/24United Kingdom—000.00%
157.203.140.0/24United Kingdom—000.00%
157.203.141.0/24United Kingdom—000.00%
157.203.142.0/24United Kingdom—000.00%
157.203.143.0/24United Kingdom—000.00%
157.203.144.0/24United Kingdom—000.00%
157.203.145.0/24United Kingdom—000.00%
157.203.146.0/24United Kingdom—000.00%
157.203.147.0/24United Kingdom—000.00%
157.203.148.0/24United Kingdom—000.00%
157.203.149.0/24United Kingdom—000.00%
157.203.150.0/24United Kingdom—000.00%
157.203.151.0/24United Kingdom—000.00%
157.203.152.0/24United Kingdom—000.00%
157.203.153.0/24United Kingdom—000.00%
157.203.154.0/24United Kingdom—000.00%
157.203.155.0/24United Kingdom—000.00%
157.203.156.0/24United Kingdom—000.00%
157.203.157.0/24United Kingdom—000.00%
157.203.158.0/24United Kingdom—000.00%
157.203.159.0/24United Kingdom—000.00%
157.203.160.0/24United Kingdom—000.00%
157.203.161.0/24United Kingdom—000.00%
157.203.162.0/24United Kingdom—000.00%
157.203.163.0/24United Kingdom—000.00%
157.203.164.0/24United Kingdom—000.00%
157.203.165.0/24United Kingdom—000.00%
157.203.166.0/24United Kingdom—000.00%
157.203.167.0/24United Kingdom—000.00%
157.203.168.0/24United Kingdom—000.00%
157.203.169.0/24United Kingdom—000.00%
157.203.170.0/24United Kingdom—000.00%
157.203.171.0/24United Kingdom—000.00%
157.203.172.0/24United Kingdom—000.00%
157.203.173.0/24United Kingdom—000.00%
157.203.174.0/24United Kingdom—000.00%
157.203.175.0/24United Kingdom—000.00%
157.203.176.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.177.0/24United KingdomAS21369Atos IT Services UK Ltd501.95%
157.203.178.0/24United KingdomAS21369Atos IT Services UK Ltd200.78%
157.203.179.0/24United KingdomAS21369Atos IT Services UK Ltd200.78%
157.203.180.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.181.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.182.0/24United Kingdom—000.00%
157.203.183.0/24United Kingdom—000.00%
157.203.184.0/24United Kingdom—000.00%
157.203.185.0/24United Kingdom—000.00%
157.203.186.0/24United Kingdom—000.00%
157.203.187.0/24United Kingdom—000.00%
157.203.188.0/24United Kingdom—000.00%
157.203.189.0/24United Kingdom—000.00%
157.203.190.0/24United Kingdom—000.00%
157.203.191.0/24United Kingdom—000.00%
157.203.192.0/24United Kingdom—000.00%
157.203.193.0/24United Kingdom—000.00%
157.203.194.0/24United Kingdom—000.00%
157.203.195.0/24United Kingdom—000.00%
157.203.196.0/24United Kingdom—000.00%
157.203.197.0/24United Kingdom—000.00%
157.203.198.0/24United Kingdom—000.00%
157.203.199.0/24United Kingdom—000.00%
157.203.200.0/24United Kingdom—000.00%
157.203.201.0/24United Kingdom—000.00%
157.203.202.0/24United Kingdom—000.00%
157.203.203.0/24United Kingdom—000.00%
157.203.204.0/24United Kingdom—000.00%
157.203.205.0/24United Kingdom—000.00%
157.203.206.0/24United Kingdom—000.00%
157.203.207.0/24United Kingdom—000.00%
157.203.208.0/24United Kingdom—000.00%
157.203.209.0/24United Kingdom—000.00%
157.203.210.0/24United Kingdom—000.00%
157.203.211.0/24United Kingdom—000.00%
157.203.212.0/24United Kingdom—000.00%
157.203.213.0/24United Kingdom—000.00%
157.203.214.0/24United Kingdom—000.00%
157.203.215.0/24United Kingdom—000.00%
157.203.216.0/24United Kingdom—000.00%
157.203.217.0/24United Kingdom—000.00%
157.203.218.0/24United Kingdom—000.00%
157.203.219.0/24United Kingdom—000.00%
157.203.220.0/24United Kingdom—000.00%
157.203.221.0/24United Kingdom—000.00%
157.203.222.0/24United Kingdom—000.00%
157.203.223.0/24United Kingdom—000.00%
157.203.224.0/24United Kingdom—000.00%
157.203.225.0/24United Kingdom—000.00%
157.203.226.0/24United Kingdom—000.00%
157.203.227.0/24United Kingdom—000.00%
157.203.228.0/24United Kingdom—000.00%
157.203.229.0/24United Kingdom—000.00%
157.203.230.0/24United Kingdom—000.00%
157.203.231.0/24United Kingdom—000.00%
157.203.232.0/24United Kingdom—000.00%
157.203.233.0/24United Kingdom—000.00%
157.203.234.0/24United Kingdom—000.00%
157.203.235.0/24United Kingdom—000.00%
157.203.236.0/24United Kingdom—000.00%
157.203.237.0/24United Kingdom—000.00%
157.203.238.0/24United Kingdom—000.00%
157.203.239.0/24United Kingdom—000.00%
157.203.240.0/24United Kingdom—000.00%
157.203.241.0/24United Kingdom—000.00%
157.203.242.0/24United KingdomAS21369Atos IT Services UK Ltd6256100.00%
157.203.243.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.244.0/24United Kingdom—000.00%
157.203.245.0/24United Kingdom—000.00%
157.203.246.0/24United Kingdom—000.00%
157.203.247.0/24United Kingdom—000.00%
157.203.248.0/24United Kingdom—000.00%
157.203.249.0/24United Kingdom—000.00%
157.203.250.0/24United Kingdom—000.00%
157.203.251.0/24United Kingdom—000.00%
157.203.252.0/24United Kingdom—000.00%
157.203.253.0/24United Kingdom—000.00%
157.203.254.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
157.203.255.0/24United KingdomAS21369Atos IT Services UK Ltd000.00%
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

Request evaluationDownload sample
01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.
Get a quoteCompare licenses