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InternetData
65,536 routable6 ASes
/16 subnet

37.251.0.0/16

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
5
countries
6
announcing ASes
13
announced prefixes
3,071
anonymous addresses

Where it is

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

  1. The Netherlands36,864 · 56.25%
  2. Romania18,432 · 28.13%
  3. Belgium4,096 · 6.25%
  4. Germany4,096 · 6.25%
  5. Poland2,048 · 3.13%

Who announces it

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

  1. AS1136KPN B.V.32,768 · 50.00%
  2. AS34358Cyber_Folks SRL14,336 · 21.88%
  3. AS39686Eurofiber Nederland BV8,192 · 12.50%
  4. AS8953Orange Romania S.A.4,096 · 6.25%
  5. AS31317AnschlussWerk GmbH4,096 · 6.25%
  6. AS29205VERCOM S.A.2,048 · 3.13%

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.

13 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
37.251.0.0/17AS1136KPN B.V.The NetherlandsValid172026-10-02
37.251.128.0/19AS34358Cyber_Folks SRLRomaniaValid172026-10-02
37.251.160.0/20AS34358Cyber_Folks SRLRomaniaValid172026-10-02
37.251.176.0/20AS39686Eurofiber Nederland BVThe NetherlandsValid172026-10-02
37.251.192.0/21AS29205VERCOM S.A.PolandValid172026-10-02
37.251.200.0/21AS39686Eurofiber Nederland BVBelgiumValid172026-10-02
37.251.208.0/20AS8953Orange Romania S.A.RomaniaValid172026-10-02
37.251.224.0/21AS31317AnschlussWerk GmbHGermanyValid172026-10-02
37.251.232.0/21AS31317AnschlussWerk GmbHGermanyValid172026-10-02
37.251.240.0/21AS39686Eurofiber Nederland BVBelgiumValid172026-10-02
37.251.248.0/21AS34358Cyber_Folks SRLRomaniaValid172026-10-02
37.251.248.0/24AS34358Cyber_Folks SRLRomaniaValid172026-10-02
37.251.255.0/24AS34358Cyber_Folks SRLRomaniaValid172026-10-02

Every /24 inside it

37.251.0.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.1.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.2.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.3.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.4.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.5.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.6.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.7.0/24The NetherlandsAS1136KPN B.V.702.73%
37.251.8.0/24The NetherlandsAS1136KPN B.V.000.00%
37.251.9.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.10.0/24The NetherlandsAS1136KPN B.V.000.00%
37.251.11.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.12.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.13.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.14.0/24The NetherlandsAS1136KPN B.V.602.34%
37.251.15.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.16.0/24The NetherlandsAS1136KPN B.V.602.34%
37.251.17.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.18.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.19.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.20.0/24The NetherlandsAS1136KPN B.V.702.73%
37.251.21.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.22.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.23.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.24.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.25.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.26.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.27.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.28.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.29.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.30.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.31.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.32.0/24The NetherlandsAS1136KPN B.V.702.73%
37.251.33.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.34.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.35.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.36.0/24The NetherlandsAS1136KPN B.V.602.34%
37.251.37.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.38.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.39.0/24The NetherlandsAS1136KPN B.V.803.13%
37.251.40.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.41.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.42.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.43.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.44.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.45.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.46.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.47.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.48.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.49.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.50.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.51.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.52.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.53.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.54.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.55.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.56.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.57.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.58.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.59.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.60.0/24The NetherlandsAS1136KPN B.V.702.73%
37.251.61.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.62.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.63.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.64.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.65.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.66.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.67.0/24The NetherlandsAS1136KPN B.V.000.00%
37.251.68.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.69.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.70.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.71.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.72.0/24The NetherlandsAS1136KPN B.V.000.00%
37.251.73.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.74.0/24The NetherlandsAS1136KPN B.V.803.13%
37.251.75.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.76.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.77.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.78.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.79.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.80.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.81.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.82.0/24The NetherlandsAS1136KPN B.V.903.52%
37.251.83.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.84.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.85.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.86.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.87.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.88.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.89.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.90.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.91.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.92.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.93.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.94.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.95.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.96.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.97.0/24The NetherlandsAS1136KPN B.V.501.95%
37.251.98.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.99.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.100.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.101.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.102.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.103.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.104.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.105.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.106.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.107.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.108.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.109.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.110.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.111.0/24The NetherlandsAS1136KPN B.V.702.73%
37.251.112.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.113.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.114.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.115.0/24The NetherlandsAS1136KPN B.V.100.39%
37.251.116.0/24The NetherlandsAS1136KPN B.V.602.34%
37.251.117.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.118.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.119.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.120.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.121.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.122.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.123.0/24The NetherlandsAS1136KPN B.V.200.78%
37.251.124.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.125.0/24The NetherlandsAS1136KPN B.V.401.56%
37.251.126.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.127.0/24The NetherlandsAS1136KPN B.V.301.17%
37.251.128.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.129.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.130.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.131.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.132.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.133.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.134.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.135.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.136.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.137.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.138.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.139.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.140.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.141.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.142.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.143.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.144.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.145.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.146.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.147.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.148.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.149.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.150.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.151.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.152.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.153.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.154.0/24RomaniaAS34358Cyber_Folks SRL3256100.00%
37.251.155.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.156.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.157.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.158.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.159.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.160.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.161.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.162.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.163.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.164.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.165.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.166.0/24RomaniaAS34358Cyber_Folks SRL2256100.00%
37.251.167.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.168.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.169.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.170.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.171.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.172.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.173.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.174.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.175.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.176.0/24The NetherlandsAS39686Eurofiber Nederland BV1204.69%
37.251.177.0/24The NetherlandsAS39686Eurofiber Nederland BV2108.20%
37.251.178.0/24The NetherlandsAS39686Eurofiber Nederland BV1706.64%
37.251.179.0/24The NetherlandsAS39686Eurofiber Nederland BV1505.86%
37.251.180.0/24The NetherlandsAS39686Eurofiber Nederland BV2007.81%
37.251.181.0/24The NetherlandsAS39686Eurofiber Nederland BV1204.69%
37.251.182.0/24The NetherlandsAS39686Eurofiber Nederland BV702.73%
37.251.183.0/24The NetherlandsAS39686Eurofiber Nederland BV386437.50%
37.251.184.0/24The NetherlandsAS39686Eurofiber Nederland BV000.00%
37.251.185.0/24The NetherlandsAS39686Eurofiber Nederland BV1204.69%
37.251.186.0/24The NetherlandsAS39686Eurofiber Nederland BV1907.42%
37.251.187.0/24The NetherlandsAS39686Eurofiber Nederland BV1104.30%
37.251.188.0/24The NetherlandsAS39686Eurofiber Nederland BV2007.81%
37.251.189.0/24The NetherlandsAS39686Eurofiber Nederland BV1405.47%
37.251.190.0/24The NetherlandsAS39686Eurofiber Nederland BV30011.72%
37.251.191.0/24The NetherlandsAS39686Eurofiber Nederland BV1003.91%
37.251.192.0/24PolandAS29205VERCOM S.A.000.00%
37.251.193.0/24PolandAS29205VERCOM S.A.000.00%
37.251.194.0/24PolandAS29205VERCOM S.A.000.00%
37.251.195.0/24PolandAS29205VERCOM S.A.000.00%
37.251.196.0/24PolandAS29205VERCOM S.A.000.00%
37.251.197.0/24PolandAS29205VERCOM S.A.000.00%
37.251.198.0/24PolandAS29205VERCOM S.A.000.00%
37.251.199.0/24PolandAS29205VERCOM S.A.000.00%
37.251.200.0/24BelgiumAS39686Eurofiber Nederland BV1305.08%
37.251.201.0/24BelgiumAS39686Eurofiber Nederland BV903.52%
37.251.202.0/24BelgiumAS39686Eurofiber Nederland BV301.17%
37.251.203.0/24BelgiumAS39686Eurofiber Nederland BV702.73%
37.251.204.0/24BelgiumAS39686Eurofiber Nederland BV301.17%
37.251.205.0/24BelgiumAS39686Eurofiber Nederland BV702.73%
37.251.206.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.207.0/24BelgiumAS39686Eurofiber Nederland BV401.56%
37.251.208.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.209.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.210.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.211.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.212.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.213.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.214.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.215.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.216.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.217.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.218.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.219.0/24RomaniaAS8953Orange Romania S.A.000.00%
37.251.220.0/24RomaniaAS8953Orange Romania S.A.240093.75%
37.251.221.0/24RomaniaAS8953Orange Romania S.A.2560100.00%
37.251.222.0/24RomaniaAS8953Orange Romania S.A.2560100.00%
37.251.223.0/24RomaniaAS8953Orange Romania S.A.255099.61%
37.251.224.0/24GermanyAS31317AnschlussWerk GmbH97037.89%
37.251.225.0/24GermanyAS31317AnschlussWerk GmbH131051.17%
37.251.226.0/24GermanyAS31317AnschlussWerk GmbH115044.92%
37.251.227.0/24GermanyAS31317AnschlussWerk GmbH121047.27%
37.251.228.0/24GermanyAS31317AnschlussWerk GmbH109042.58%
37.251.229.0/24GermanyAS31317AnschlussWerk GmbH104040.63%
37.251.230.0/24GermanyAS31317AnschlussWerk GmbH107041.80%
37.251.231.0/24GermanyAS31317AnschlussWerk GmbH122047.66%
37.251.232.0/24GermanyAS31317AnschlussWerk GmbH83032.42%
37.251.233.0/24GermanyAS31317AnschlussWerk GmbH26010.16%
37.251.234.0/24GermanyAS31317AnschlussWerk GmbH95037.11%
37.251.235.0/24GermanyAS31317AnschlussWerk GmbH111043.36%
37.251.236.0/24GermanyAS31317AnschlussWerk GmbH100.39%
37.251.237.0/24GermanyAS31317AnschlussWerk GmbH501.95%
37.251.238.0/24GermanyAS31317AnschlussWerk GmbH96037.50%
37.251.239.0/24GermanyAS31317AnschlussWerk GmbH1003.91%
37.251.240.0/24BelgiumAS39686Eurofiber Nederland BV100.39%
37.251.241.0/24BelgiumAS39686Eurofiber Nederland BV401.56%
37.251.242.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.243.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.244.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.245.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.246.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.247.0/24BelgiumAS39686Eurofiber Nederland BV000.00%
37.251.248.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.249.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.250.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.251.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.252.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.253.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
37.251.254.0/24RomaniaAS34358Cyber_Folks SRL1256100.00%
37.251.255.0/24RomaniaAS34358Cyber_Folks SRL0256100.00%
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands, with 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 rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.