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InternetData
65,536 routable39 ASes
/16 subnet

204.87.0.0/16

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
39
announcing ASes
52
announced prefixes
235
anonymous addresses

Where it is

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

  1. United States64,000 · 97.66%
  2. Canada768 · 1.17%
  3. Chile256 · 0.39%
  4. Peru256 · 0.39%
  5. South Africa256 · 0.39%

Who announces it

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

top 25 of 39
  1. AS40628Oklahoma Office of Management & Enterprise Services16,384 · 25.00%
  2. AS3930Federal Energy Regulatory Commission4,096 · 6.25%
  3. AS174Cogent Communications, LLC1,536 · 2.34%
  4. AS21860FOLEY & LARDNER LLP768 · 1.17%
  5. AS5036Whalley Computer Associates512 · 0.78%
  6. AS11716William O'Neil & Company512 · 0.78%
  7. AS14361HopOne Internet Corporation512 · 0.78%
  8. AS3701University of Oregon256 · 0.39%
  9. AS4261Intermart Inc.256 · 0.39%
  10. AS6130American Internet Services, LLC.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.

52 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
204.87.16.0/20AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.16.0/24AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.17.0/24AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.18.0/24AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.19.0/24AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.20.0/24AS3930Federal Energy Regulatory CommissionUnited StatesNot found172026-10-02
204.87.32.0/23AS174Cogent Communications, LLCUnited StatesNot found172026-10-02
204.87.34.0/24AS174Cogent Communications, LLCUnited StatesNot found172026-10-02
204.87.40.0/24AS21860FOLEY & LARDNER LLPUnited StatesNot found172026-10-02
204.87.41.0/24AS174Cogent Communications, LLCUnited StatesNot found172026-10-02
204.87.50.0/24AS21860FOLEY & LARDNER LLPUnited StatesNot found172026-10-02
204.87.58.0/24AS8075Microsoft CorporationUnited StatesValid172026-10-02
204.87.60.0/24AS21860FOLEY & LARDNER LLPUnited StatesNot found172026-10-02
204.87.62.0/23AS174Cogent Communications, LLCUnited StatesNot found172026-10-02
204.87.64.0/18AS40628Oklahoma Office of Management & Enterprise ServicesUnited StatesValid202026-10-02
204.87.135.0/24AS6130American Internet Services, LLC.United StatesNot found182026-10-02
204.87.142.0/24AS54059Itelligence Inc. USUnited StatesNot found182026-10-02
204.87.149.0/24AS14051FidiumUnited StatesNot found172026-10-02
204.87.151.0/24AS16509Amazon.com, Inc.United StatesValid182026-10-02
204.87.157.0/24AS13871Telebyte NWUnited StatesNot found182026-10-02
204.87.158.0/24AS399436Cortland County Health DepartmentUnited StatesNot found172026-10-02
204.87.160.0/24AS18517LL Global IncUnited StatesNot found172026-10-02
204.87.165.0/24AS4261Intermart Inc.United StatesNot found172026-10-02
204.87.167.0/24AS13676GoNetSpeedUnited StatesNot found182026-10-02
204.87.169.0/24AS26610Universidad Tecnica Federico Santa MariaChileNot found172026-10-02
204.87.170.0/24AS398927Francis Tuttle Technology Center School District #21United StatesValid172026-10-02
204.87.172.0/24AS54330Disney Worldwide Services, Inc.United StatesNot found172026-10-02
204.87.173.0/24AS17025Zayo BandwidthUnited StatesNot found172026-10-02
204.87.180.0/24AS32312Telecommunication Systems, Inc.United StatesNot found172026-10-02
204.87.181.0/24AS5036Whalley Computer AssociatesUnited StatesNot found172026-10-02
204.87.183.0/24AS7247Mojo NetworksUnited StatesNot found182026-10-02
204.87.185.0/24AS26982Snowmoon TechnologiesUnited StatesValid182026-10-02
204.87.186.0/24AS396982Google LLCUnited StatesValid172026-10-02
204.87.189.0/24AS54058Rakuten IncUnited StatesNot found182026-10-02
204.87.191.0/24AS397423Tier.Net Technologies LLCUnited StatesNot found172026-10-02
204.87.192.0/24AS5036Whalley Computer AssociatesUnited StatesNot found172026-10-02
204.87.198.0/24AS7018AT&T Enterprises, LLCUnited StatesNot found172026-10-02
204.87.203.0/24AS398282United StatesNot found172026-10-02
204.87.204.0/24AS3701University of OregonUnited StatesNot found192026-10-02
204.87.205.0/24AS21575ENTEL PERU S.A.PeruValid172026-10-02
204.87.206.0/24AS402910Jefferson County IdahoUnited StatesValid182026-10-02
204.87.211.0/24AS13536FirstLight Networks, LLCUnited StatesNot found182026-10-02
204.87.212.0/24AS394052W.N. Tuscano AgencyUnited StatesNot found172026-10-02
204.87.213.0/24AS46594Business Information Systems, Inc.United StatesNot found182026-10-02
204.87.225.0/24AS14361HopOne Internet CorporationUnited StatesNot found172026-10-02
204.87.226.0/24AS14361HopOne Internet CorporationUnited StatesNot found172026-10-02
204.87.227.0/24AS22773Cox Communications Inc.United StatesNot found172026-10-02
204.87.243.0/24AS397728Taylor McCaffrey LLPCanadaNot found182026-10-02
204.87.244.0/24AS11716William O'Neil & CompanyUnited StatesNot found172026-10-02
204.87.249.0/24AS393977Great Southern BankUnited StatesNot found172026-10-02
204.87.253.0/24AS11716William O'Neil & CompanyUnited StatesNot found172026-10-02
204.87.255.0/24AS32941PYR Software Ltd.CanadaNot found172026-10-02

Every /24 inside it

204.87.0.0/24United States—000.00%
204.87.1.0/24United States—000.00%
204.87.2.0/24United States—000.00%
204.87.3.0/24United States—000.00%
204.87.4.0/24United States—000.00%
204.87.5.0/24United States—000.00%
204.87.6.0/24United States—000.00%
204.87.7.0/24United States—000.00%
204.87.8.0/24United States—000.00%
204.87.9.0/24United States—000.00%
204.87.10.0/24United States—000.00%
204.87.11.0/24United States—000.00%
204.87.12.0/24United States—000.00%
204.87.13.0/24United States—000.00%
204.87.14.0/24United States—000.00%
204.87.15.0/24United States—000.00%
204.87.16.0/24United StatesAS3930Federal Energy Regulatory Commission100.39%
204.87.17.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.18.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.19.0/24United StatesAS3930Federal Energy Regulatory Commission100.39%
204.87.20.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.21.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.22.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.23.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.24.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.25.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.26.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.27.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.28.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.29.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.30.0/24United StatesAS3930Federal Energy Regulatory Commission000.00%
204.87.31.0/24United StatesAS3930Federal Energy Regulatory Commission301.17%
204.87.32.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.33.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.34.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.35.0/24United States—000.00%
204.87.36.0/24United States—000.00%
204.87.37.0/24United States—000.00%
204.87.38.0/24United States—000.00%
204.87.39.0/24United States—000.00%
204.87.40.0/24United StatesAS21860FOLEY & LARDNER LLP100.39%
204.87.41.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.42.0/24United States—000.00%
204.87.43.0/24United States—000.00%
204.87.44.0/24United States—000.00%
204.87.45.0/24United States—000.00%
204.87.46.0/24United States—000.00%
204.87.47.0/24United States—000.00%
204.87.48.0/24United States—000.00%
204.87.49.0/24United States—000.00%
204.87.50.0/24United StatesAS21860FOLEY & LARDNER LLP000.00%
204.87.51.0/24United States—000.00%
204.87.52.0/24United States—000.00%
204.87.53.0/24United States—000.00%
204.87.54.0/24United States—000.00%
204.87.55.0/24United States—000.00%
204.87.56.0/24United States—000.00%
204.87.57.0/24United States—000.00%
204.87.58.0/24United StatesAS8075Microsoft Corporation3256100.00%
204.87.59.0/24United States—000.00%
204.87.60.0/24United StatesAS21860FOLEY & LARDNER LLP000.00%
204.87.61.0/24United States—000.00%
204.87.62.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.63.0/24United StatesAS174Cogent Communications, LLC000.00%
204.87.64.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services200.78%
204.87.65.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.66.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.67.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services46017.97%
204.87.68.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.69.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.70.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.71.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.72.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.73.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.74.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.75.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.76.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.77.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.78.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.79.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.80.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.81.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.82.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services50019.53%
204.87.83.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.84.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.85.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.86.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.87.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.88.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services1706.64%
204.87.89.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.90.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.91.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.92.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.93.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.94.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.95.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.96.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.97.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.98.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.99.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.100.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services200.78%
204.87.101.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.102.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.103.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.104.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.105.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.106.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.107.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.108.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.109.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.110.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.111.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.112.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.113.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.114.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.115.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.116.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.117.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.118.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.119.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.120.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.121.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.122.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.123.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.124.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.125.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.126.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.127.0/24United StatesAS40628Oklahoma Office of Management & Enterprise Services000.00%
204.87.128.0/24United States—000.00%
204.87.129.0/24Canada—000.00%
204.87.130.0/24United States—000.00%
204.87.131.0/24United States—000.00%
204.87.132.0/24United States—000.00%
204.87.133.0/24United States—000.00%
204.87.134.0/24United States—000.00%
204.87.135.0/24United StatesAS6130American Internet Services, LLC.000.00%
204.87.136.0/24United States—000.00%
204.87.137.0/24United States—000.00%
204.87.138.0/24United States—000.00%
204.87.139.0/24United States—000.00%
204.87.140.0/24United States—000.00%
204.87.141.0/24United States—000.00%
204.87.142.0/24United StatesAS54059Itelligence Inc. US903.52%
204.87.143.0/24United States—000.00%
204.87.144.0/24United States—000.00%
204.87.145.0/24United States—000.00%
204.87.146.0/24United States—000.00%
204.87.147.0/24United States—000.00%
204.87.148.0/24United States—000.00%
204.87.149.0/24United StatesAS14051Fidium100.39%
204.87.150.0/24United States—000.00%
204.87.151.0/24United StatesAS16509Amazon.com, Inc.0256100.00%
204.87.152.0/24United States—000.00%
204.87.153.0/24United States—000.00%
204.87.154.0/24United States—000.00%
204.87.155.0/24United States—000.00%
204.87.156.0/24United States—000.00%
204.87.157.0/24United StatesAS13871Telebyte NW000.00%
204.87.158.0/24United StatesAS399436Cortland County Health Department903.52%
204.87.159.0/24United States—000.00%
204.87.160.0/24United StatesAS18517LL Global Inc000.00%
204.87.161.0/24United States—000.00%
204.87.162.0/24United States—000.00%
204.87.163.0/24United States—000.00%
204.87.164.0/24United States—000.00%
204.87.165.0/24United StatesAS4261Intermart Inc.000.00%
204.87.166.0/24United States—000.00%
204.87.167.0/24United StatesAS13676GoNetSpeed200.78%
204.87.168.0/24United States—000.00%
204.87.169.0/24ChileAS26610Universidad Tecnica Federico Santa Maria000.00%
204.87.170.0/24United StatesAS398927Francis Tuttle Technology Center School District #21000.00%
204.87.171.0/24United States—000.00%
204.87.172.0/24United StatesAS54330Disney Worldwide Services, Inc.000.00%
204.87.173.0/24United StatesAS17025Zayo Bandwidth100.39%
204.87.174.0/24United States—000.00%
204.87.175.0/24United States—000.00%
204.87.176.0/24United States—000.00%
204.87.177.0/24United States—000.00%
204.87.178.0/24United States—000.00%
204.87.179.0/24South Africa—000.00%
204.87.180.0/24United StatesAS32312Telecommunication Systems, Inc.000.00%
204.87.181.0/24United StatesAS5036Whalley Computer Associates100.39%
204.87.182.0/24United States—000.00%
204.87.183.0/24United StatesAS7247Mojo Networks000.00%
204.87.184.0/24United States—000.00%
204.87.185.0/24United StatesAS26982Snowmoon Technologies0256100.00%
204.87.186.0/24United StatesAS396982Google LLC0256100.00%
204.87.187.0/24United States—000.00%
204.87.188.0/24United States—000.00%
204.87.189.0/24United StatesAS54058Rakuten Inc100.39%
204.87.190.0/24United States—000.00%
204.87.191.0/24United StatesAS397423Tier.Net Technologies LLC0256100.00%
204.87.192.0/24United StatesAS5036Whalley Computer Associates000.00%
204.87.193.0/24United States—000.00%
204.87.194.0/24United States—000.00%
204.87.195.0/24United States—000.00%
204.87.196.0/24United States—000.00%
204.87.197.0/24United States—000.00%
204.87.198.0/24United StatesAS7018AT&T Enterprises, LLC3256100.00%
204.87.199.0/24United States—000.00%
204.87.200.0/24United States—000.00%
204.87.201.0/24United States—000.00%
204.87.202.0/24United States—000.00%
204.87.203.0/24United StatesAS398282AS398282200.78%
204.87.204.0/24United StatesAS3701University of Oregon200.78%
204.87.205.0/24PeruAS21575ENTEL PERU S.A.000.00%
204.87.206.0/24United StatesAS402910Jefferson County Idaho60023.44%
204.87.207.0/24United States—000.00%
204.87.208.0/24United States—000.00%
204.87.209.0/24United States—000.00%
204.87.210.0/24United States—000.00%
204.87.211.0/24United StatesAS13536FirstLight Networks, LLC000.00%
204.87.212.0/24United StatesAS394052W.N. Tuscano Agency000.00%
204.87.213.0/24United StatesAS46594Business Information Systems, Inc.1025599.61%
204.87.214.0/24United States—000.00%
204.87.215.0/24United States—000.00%
204.87.216.0/24United States—000.00%
204.87.217.0/24United States—000.00%
204.87.218.0/24United States—000.00%
204.87.219.0/24United States—000.00%
204.87.220.0/24United States—000.00%
204.87.221.0/24United States—000.00%
204.87.222.0/24United States—000.00%
204.87.223.0/24United States—000.00%
204.87.224.0/24United States—000.00%
204.87.225.0/24United StatesAS14361HopOne Internet Corporation0256100.00%
204.87.226.0/24United StatesAS14361HopOne Internet Corporation0256100.00%
204.87.227.0/24United StatesAS22773Cox Communications Inc.125599.61%
204.87.228.0/24United States—000.00%
204.87.229.0/24United States—000.00%
204.87.230.0/24United States—000.00%
204.87.231.0/24United States—000.00%
204.87.232.0/24United States—000.00%
204.87.233.0/24United States—000.00%
204.87.234.0/24United States—000.00%
204.87.235.0/24United States—000.00%
204.87.236.0/24United States—000.00%
204.87.237.0/24United States—000.00%
204.87.238.0/24United States—000.00%
204.87.239.0/24United States—000.00%
204.87.240.0/24United States—000.00%
204.87.241.0/24United States—000.00%
204.87.242.0/24United States—000.00%
204.87.243.0/24CanadaAS397728Taylor McCaffrey LLP200.78%
204.87.244.0/24United StatesAS11716William O'Neil & Company000.00%
204.87.245.0/24United States—000.00%
204.87.246.0/24United States—000.00%
204.87.247.0/24United States—000.00%
204.87.248.0/24United States—000.00%
204.87.249.0/24United StatesAS393977Great Southern Bank100.39%
204.87.250.0/24United States—000.00%
204.87.251.0/24United States—000.00%
204.87.252.0/24United States—000.00%
204.87.253.0/24United StatesAS11716William O'Neil & Company000.00%
204.87.254.0/24United States—000.00%
204.87.255.0/24CanadaAS32941PYR Software Ltd.401.56%
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.