Skip to content
65,536 routable11 ASes
/16 subnet

161.51.0.0/16

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

65,536
routable addresses
65,536
geolocated
4
countries
11
announcing ASes
31
announced prefixes
780
anonymous addresses

Where it is

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

  1. United States20,992 · 32.03%
  2. Germany18,688 · 28.52%
  3. United Kingdom17,408 · 26.56%
  4. The Netherlands8,448 · 12.89%

Who announces it

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

  1. AS201838Community Fibre Limited17,408 · 26.56%
  2. AS39686Eurofiber Nederland BV8,192 · 12.50%
  3. AS16525KBR4,608 · 7.03%
  4. AS21263TeleData GmbH2,048 · 3.13%
  5. AS2764AAPT Limited1,280 · 1.95%
  6. AS15830Equinix (EMEA) Acquisition Enterprises B.V.1,024 · 1.56%
  7. AS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.512 · 0.78%
  8. AS395868Fort Bend Independent School District512 · 0.78%
  9. AS12859BIT BV256 · 0.39%
  10. AS14618Amazon.com, Inc.256 · 0.39%

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.

31 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
161.51.0.0/22AS16525KBRUnited Statesnot found172026-10-02
161.51.4.0/22AS16525KBRUnited Statesnot found172026-10-02
161.51.8.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.10.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.11.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.16.0/24AS15830Equinix (EMEA) Acquisition Enterprises B.V.United Statesnot found172026-10-02
161.51.17.0/24AS15830Equinix (EMEA) Acquisition Enterprises B.V.United Statesnot found172026-10-02
161.51.18.0/24AS15830Equinix (EMEA) Acquisition Enterprises B.V.United Statesnot found172026-10-02
161.51.19.0/24AS15830Equinix (EMEA) Acquisition Enterprises B.V.United Statesnot found172026-10-02
161.51.20.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.21.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.22.0/24AS16525KBRUnited Statesnot found172026-10-02
161.51.24.0/22AS16525KBRUnited Statesnot found172026-10-02
161.51.40.0/22AS2764AAPT LimitedUnited Statesnot found172026-10-02
161.51.40.0/23AS2764AAPT LimitedUnited Statesnot found172026-10-02
161.51.42.0/23AS2764AAPT LimitedUnited Statesnot found172026-10-02
161.51.44.0/24AS2764AAPT LimitedUnited Statesnot found172026-10-02
161.51.48.0/20AS201838Community Fibre LimitedUnited Kingdomvalid172026-10-02
161.51.64.0/19AS39686Eurofiber Nederland BVThe Netherlandsvalid172026-10-02
161.51.96.0/23AS201838Community Fibre LimitedUnited Kingdomvalid172026-10-02
161.51.99.0/24AS14618Amazon.com, Inc.United Statesvalid182026-10-02
161.51.101.0/24AS12859BIT BVThe Netherlandsvalid172026-10-02
161.51.128.0/24AS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Germanynot found172026-10-02
161.51.130.0/24AS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Germanynot found172026-10-02
161.51.192.0/19AS201838Community Fibre LimitedUnited Kingdomvalid172026-10-02
161.51.224.0/20AS201838Community Fibre LimitedUnited Kingdomvalid172026-10-02
161.51.240.0/21AS21263TeleData GmbHGermanyvalid172026-10-02
161.51.248.0/24AS395868Fort Bend Independent School DistrictUnited Statesnot found172026-10-02
161.51.250.0/24AS395868Fort Bend Independent School DistrictUnited Statesnot found172026-10-02
161.51.252.0/23AS201838Community Fibre LimitedUnited Kingdomvalid172026-10-02
161.51.255.0/24AS205037Kisters AGGermanyvalid172026-10-02

Every /24 inside it

161.51.0.0/24United StatesAS16525KBR100.39%
161.51.1.0/24United StatesAS16525KBR000.00%
161.51.2.0/24United StatesAS16525KBR000.00%
161.51.3.0/24United StatesAS16525KBR200.78%
161.51.4.0/24United StatesAS16525KBR000.00%
161.51.5.0/24United StatesAS16525KBR000.00%
161.51.6.0/24United StatesAS16525KBR0256100.00%
161.51.7.0/24United StatesAS16525KBR0256100.00%
161.51.8.0/24United StatesAS16525KBR000.00%
161.51.9.0/24United States—000.00%
161.51.10.0/24United StatesAS16525KBR000.00%
161.51.11.0/24United StatesAS16525KBR100.39%
161.51.12.0/24United States—000.00%
161.51.13.0/24United States—000.00%
161.51.14.0/24United States—000.00%
161.51.15.0/24United States—000.00%
161.51.16.0/24United StatesAS15830Equinix (EMEA) Acquisition Enterprises B.V.0256100.00%
161.51.17.0/24United StatesAS15830Equinix (EMEA) Acquisition Enterprises B.V.0256100.00%
161.51.18.0/24United StatesAS15830Equinix (EMEA) Acquisition Enterprises B.V.0256100.00%
161.51.19.0/24United StatesAS15830Equinix (EMEA) Acquisition Enterprises B.V.1256100.00%
161.51.20.0/24United StatesAS16525KBR000.00%
161.51.21.0/24United StatesAS16525KBR000.00%
161.51.22.0/24United StatesAS16525KBR000.00%
161.51.23.0/24United States—000.00%
161.51.24.0/24United StatesAS16525KBR000.00%
161.51.25.0/24United StatesAS16525KBR000.00%
161.51.26.0/24United StatesAS16525KBR000.00%
161.51.27.0/24United StatesAS16525KBR000.00%
161.51.28.0/24United States—000.00%
161.51.29.0/24United States—000.00%
161.51.30.0/24United States—000.00%
161.51.31.0/24United States—000.00%
161.51.32.0/24United States—000.00%
161.51.33.0/24United States—000.00%
161.51.34.0/24United States—000.00%
161.51.35.0/24United States—000.00%
161.51.36.0/24United States—000.00%
161.51.37.0/24United States—000.00%
161.51.38.0/24United States—000.00%
161.51.39.0/24United States—000.00%
161.51.40.0/24United StatesAS2764AAPT Limited000.00%
161.51.41.0/24United StatesAS2764AAPT Limited000.00%
161.51.42.0/24United StatesAS2764AAPT Limited000.00%
161.51.43.0/24United StatesAS2764AAPT Limited100.39%
161.51.44.0/24United StatesAS2764AAPT Limited000.00%
161.51.45.0/24United States—000.00%
161.51.46.0/24United States—000.00%
161.51.47.0/24United States—000.00%
161.51.48.0/24United KingdomAS201838Community Fibre Limited1706.64%
161.51.49.0/24United KingdomAS201838Community Fibre Limited1405.47%
161.51.50.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.51.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.52.0/24United KingdomAS201838Community Fibre Limited1606.25%
161.51.53.0/24United KingdomAS201838Community Fibre Limited1104.30%
161.51.54.0/24United KingdomAS201838Community Fibre Limited803.13%
161.51.55.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.56.0/24United KingdomAS201838Community Fibre Limited803.13%
161.51.57.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.58.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.59.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.60.0/24United KingdomAS201838Community Fibre Limited803.13%
161.51.61.0/24United KingdomAS201838Community Fibre Limited501.95%
161.51.62.0/24United KingdomAS201838Community Fibre Limited501.95%
161.51.63.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.64.0/24The NetherlandsAS39686Eurofiber Nederland BV14256100.00%
161.51.65.0/24The NetherlandsAS39686Eurofiber Nederland BV9256100.00%
161.51.66.0/24The NetherlandsAS39686Eurofiber Nederland BV14256100.00%
161.51.67.0/24The NetherlandsAS39686Eurofiber Nederland BV5256100.00%
161.51.68.0/24The NetherlandsAS39686Eurofiber Nederland BV9256100.00%
161.51.69.0/24The NetherlandsAS39686Eurofiber Nederland BV46256100.00%
161.51.70.0/24The NetherlandsAS39686Eurofiber Nederland BV8256100.00%
161.51.71.0/24The NetherlandsAS39686Eurofiber Nederland BV30256100.00%
161.51.72.0/24The NetherlandsAS39686Eurofiber Nederland BV14256100.00%
161.51.73.0/24The NetherlandsAS39686Eurofiber Nederland BV26256100.00%
161.51.74.0/24The NetherlandsAS39686Eurofiber Nederland BV9256100.00%
161.51.75.0/24The NetherlandsAS39686Eurofiber Nederland BV36256100.00%
161.51.76.0/24The NetherlandsAS39686Eurofiber Nederland BV2256100.00%
161.51.77.0/24The NetherlandsAS39686Eurofiber Nederland BV9256100.00%
161.51.78.0/24The NetherlandsAS39686Eurofiber Nederland BV10256100.00%
161.51.79.0/24The NetherlandsAS39686Eurofiber Nederland BV15256100.00%
161.51.80.0/24The NetherlandsAS39686Eurofiber Nederland BV6256100.00%
161.51.81.0/24The NetherlandsAS39686Eurofiber Nederland BV10256100.00%
161.51.82.0/24The NetherlandsAS39686Eurofiber Nederland BV2256100.00%
161.51.83.0/24The NetherlandsAS39686Eurofiber Nederland BV2256100.00%
161.51.84.0/24The NetherlandsAS39686Eurofiber Nederland BV5256100.00%
161.51.85.0/24The NetherlandsAS39686Eurofiber Nederland BV15256100.00%
161.51.86.0/24The NetherlandsAS39686Eurofiber Nederland BV18256100.00%
161.51.87.0/24The NetherlandsAS39686Eurofiber Nederland BV9256100.00%
161.51.88.0/24The NetherlandsAS39686Eurofiber Nederland BV4256100.00%
161.51.89.0/24The NetherlandsAS39686Eurofiber Nederland BV11256100.00%
161.51.90.0/24The NetherlandsAS39686Eurofiber Nederland BV8256100.00%
161.51.91.0/24The NetherlandsAS39686Eurofiber Nederland BV8256100.00%
161.51.92.0/24The NetherlandsAS39686Eurofiber Nederland BV16256100.00%
161.51.93.0/24The NetherlandsAS39686Eurofiber Nederland BV8256100.00%
161.51.94.0/24The NetherlandsAS39686Eurofiber Nederland BV17256100.00%
161.51.95.0/24The NetherlandsAS39686Eurofiber Nederland BV13256100.00%
161.51.96.0/24United KingdomAS201838Community Fibre Limited702.73%
161.51.97.0/24United KingdomAS201838Community Fibre Limited1104.30%
161.51.98.0/24United States—000.00%
161.51.99.0/24United StatesAS14618Amazon.com, Inc.0256100.00%
161.51.100.0/24United States—000.00%
161.51.101.0/24The NetherlandsAS12859BIT BV000.00%
161.51.102.0/24United States—000.00%
161.51.103.0/24United States—000.00%
161.51.104.0/24United States—000.00%
161.51.105.0/24United States—000.00%
161.51.106.0/24United States—000.00%
161.51.107.0/24United States—000.00%
161.51.108.0/24United States—000.00%
161.51.109.0/24United States—000.00%
161.51.110.0/24United States—000.00%
161.51.111.0/24United States—000.00%
161.51.112.0/24United States—000.00%
161.51.113.0/24United States—000.00%
161.51.114.0/24United States—000.00%
161.51.115.0/24United States—000.00%
161.51.116.0/24United States—000.00%
161.51.117.0/24United States—000.00%
161.51.118.0/24United States—000.00%
161.51.119.0/24United States—000.00%
161.51.120.0/24United States—000.00%
161.51.121.0/24United States—000.00%
161.51.122.0/24United States—000.00%
161.51.123.0/24United States—000.00%
161.51.124.0/24United States—000.00%
161.51.125.0/24United States—000.00%
161.51.126.0/24United States—000.00%
161.51.127.0/24United States—000.00%
161.51.128.0/24GermanyAS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.000.00%
161.51.129.0/24Germany—000.00%
161.51.130.0/24GermanyAS208162Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.000.00%
161.51.131.0/24Germany—000.00%
161.51.132.0/24Germany—000.00%
161.51.133.0/24Germany—000.00%
161.51.134.0/24Germany—000.00%
161.51.135.0/24Germany—000.00%
161.51.136.0/24Germany—000.00%
161.51.137.0/24Germany—000.00%
161.51.138.0/24Germany—000.00%
161.51.139.0/24Germany—000.00%
161.51.140.0/24Germany—000.00%
161.51.141.0/24Germany—000.00%
161.51.142.0/24Germany—000.00%
161.51.143.0/24Germany—000.00%
161.51.144.0/24Germany—000.00%
161.51.145.0/24Germany—000.00%
161.51.146.0/24Germany—000.00%
161.51.147.0/24Germany—000.00%
161.51.148.0/24Germany—000.00%
161.51.149.0/24Germany—000.00%
161.51.150.0/24Germany—000.00%
161.51.151.0/24Germany—000.00%
161.51.152.0/24Germany—000.00%
161.51.153.0/24Germany—000.00%
161.51.154.0/24Germany—000.00%
161.51.155.0/24Germany—000.00%
161.51.156.0/24Germany—000.00%
161.51.157.0/24Germany—000.00%
161.51.158.0/24Germany—000.00%
161.51.159.0/24Germany—000.00%
161.51.160.0/24Germany—000.00%
161.51.161.0/24Germany—000.00%
161.51.162.0/24Germany—000.00%
161.51.163.0/24Germany—000.00%
161.51.164.0/24Germany—000.00%
161.51.165.0/24Germany—000.00%
161.51.166.0/24Germany—000.00%
161.51.167.0/24Germany—000.00%
161.51.168.0/24Germany—000.00%
161.51.169.0/24Germany—000.00%
161.51.170.0/24Germany—000.00%
161.51.171.0/24Germany—000.00%
161.51.172.0/24Germany—000.00%
161.51.173.0/24Germany—000.00%
161.51.174.0/24Germany—000.00%
161.51.175.0/24Germany—000.00%
161.51.176.0/24Germany—000.00%
161.51.177.0/24Germany—000.00%
161.51.178.0/24Germany—000.00%
161.51.179.0/24Germany—000.00%
161.51.180.0/24Germany—000.00%
161.51.181.0/24Germany—000.00%
161.51.182.0/24Germany—000.00%
161.51.183.0/24Germany—000.00%
161.51.184.0/24Germany—000.00%
161.51.185.0/24Germany—000.00%
161.51.186.0/24Germany—000.00%
161.51.187.0/24Germany—000.00%
161.51.188.0/24Germany—000.00%
161.51.189.0/24Germany—000.00%
161.51.190.0/24Germany—000.00%
161.51.191.0/24Germany—000.00%
161.51.192.0/24United KingdomAS201838Community Fibre Limited200.78%
161.51.193.0/24United KingdomAS201838Community Fibre Limited3256100.00%
161.51.194.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.195.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.196.0/24United KingdomAS201838Community Fibre Limited702.73%
161.51.197.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.198.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.199.0/24United KingdomAS201838Community Fibre Limited1807.03%
161.51.200.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.201.0/24United KingdomAS201838Community Fibre Limited1104.30%
161.51.202.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.203.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.204.0/24United KingdomAS201838Community Fibre Limited000.00%
161.51.205.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.206.0/24United KingdomAS201838Community Fibre Limited200.78%
161.51.207.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.208.0/24United KingdomAS201838Community Fibre Limited1606.25%
161.51.209.0/24United KingdomAS201838Community Fibre Limited1003.91%
161.51.210.0/24United KingdomAS201838Community Fibre Limited000.00%
161.51.211.0/24United KingdomAS201838Community Fibre Limited702.73%
161.51.212.0/24United KingdomAS201838Community Fibre Limited200.78%
161.51.213.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.214.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.215.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.216.0/24United KingdomAS201838Community Fibre Limited803.13%
161.51.217.0/24United KingdomAS201838Community Fibre Limited2256100.00%
161.51.218.0/24United KingdomAS201838Community Fibre Limited501.95%
161.51.219.0/24United KingdomAS201838Community Fibre Limited1003.91%
161.51.220.0/24United KingdomAS201838Community Fibre Limited1305.08%
161.51.221.0/24United KingdomAS201838Community Fibre Limited903.52%
161.51.222.0/24United KingdomAS201838Community Fibre Limited200.78%
161.51.223.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.224.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.225.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.226.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.227.0/24United KingdomAS201838Community Fibre Limited200.78%
161.51.228.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.229.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.230.0/24United KingdomAS201838Community Fibre Limited000.00%
161.51.231.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.232.0/24United KingdomAS201838Community Fibre Limited000.00%
161.51.233.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.234.0/24United KingdomAS201838Community Fibre Limited401.56%
161.51.235.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.236.0/24United KingdomAS201838Community Fibre Limited100.39%
161.51.237.0/24United KingdomAS201838Community Fibre Limited301.17%
161.51.238.0/24United KingdomAS201838Community Fibre Limited702.73%
161.51.239.0/24United KingdomAS201838Community Fibre Limited602.34%
161.51.240.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.241.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.242.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.243.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.244.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.245.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.246.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.247.0/24GermanyAS21263TeleData GmbH0256100.00%
161.51.248.0/24United StatesAS395868Fort Bend Independent School District000.00%
161.51.249.0/24United States—000.00%
161.51.250.0/24United StatesAS395868Fort Bend Independent School District000.00%
161.51.251.0/24United States—000.00%
161.51.252.0/24United KingdomAS201838Community Fibre Limited501.95%
161.51.253.0/24United KingdomAS201838Community Fibre Limited1104.30%
161.51.254.0/24United States—000.00%
161.51.255.0/24GermanyAS205037Kisters AG1256100.00%
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.

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.