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InternetData
65,536 routable21 ASes
/16 subnet

172.87.0.0/16

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
2
countries
21
announcing ASes
39
announced prefixes
1,570
anonymous addresses

Where it is

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

  1. United States61,440 · 93.75%
  2. Canada4,096 · 6.25%

Who announces it

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

  1. AS11427Charter Communications Inc16,384 · 25.00%
  2. AS26658HT8,192 · 12.50%
  3. AS36658Angelo State University8,192 · 12.50%
  4. AS20283CONSOLIDATED TELEPHONE COMPANY4,096 · 6.25%
  5. AS40788Start Communications4,096 · 6.25%
  6. AS15294Sentinel Technologies, Inc.3,072 · 4.69%
  7. AS30600Metronet2,048 · 3.13%
  8. AS40181Elite Systems, LLC2,048 · 3.13%
  9. AS394925OptimERA xG2,048 · 3.13%
  10. AS393889EightJoy Network LLC1,280 · 1.95%

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.

39 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
172.87.0.0/20AS20283CONSOLIDATED TELEPHONE COMPANYUnited Statesvalid172026-10-02
172.87.16.0/21AS30600MetronetUnited Statesnot found162026-10-02
172.87.24.0/21AS21859Zenlayer IncUnited Statesnot found162026-10-02
172.87.25.0/24AS21859Zenlayer IncUnited Statesnot found162026-10-02
172.87.26.0/24AS21859Zenlayer IncUnited Statesnot found162026-10-02
172.87.27.0/24AS393889EightJoy Network LLCUnited Statesnot found162026-10-02
172.87.28.0/22AS393889EightJoy Network LLCUnited Statesnot found162026-10-02
172.87.32.0/22AS30517Missouri Network Alliance, LLCUnited Statesnot found162026-10-02
172.87.36.0/22AS23005SWITCH, LTDUnited Statesnot found162026-10-02
172.87.40.0/24AS21646Fisher Investments Inc.United Statesvalid162026-10-02
172.87.44.0/23AS401462Subaru of Indiana Automotive, Inc.United Statesvalid162026-10-02
172.87.46.0/24AS394714Data Recognition CorporationUnited Statesnot found162026-10-02
172.87.47.0/24AS401484Astera LabsUnited Statesnot found172026-10-02
172.87.48.0/22AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.56.0/23AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.56.0/24AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.57.0/24AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.58.0/23AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.60.0/22AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.60.0/24AS15294Sentinel Technologies, Inc.United Statesnot found172026-10-02
172.87.64.0/21AS40181Elite Systems, LLCUnited Statesnot found172026-10-02
172.87.72.0/22AS19264TeleCurve, LLCUnited Statesnot found162026-10-02
172.87.76.0/22AS393951Hortons TV & Electronics IncUnited Statesnot found162026-10-02
172.87.80.0/20AS40788Start CommunicationsCanadavalid162026-10-02
172.87.96.0/19AS36658Angelo State UniversityUnited Statesvalid182026-10-02
172.87.96.0/21AS36658Angelo State UniversityUnited Statesvalid162026-10-02
172.87.104.0/21AS36658Angelo State UniversityUnited Statesvalid172026-10-02
172.87.112.0/21AS36658Angelo State UniversityUnited Statesvalid162026-10-02
172.87.120.0/21AS36658Angelo State UniversityUnited Statesvalid172026-10-02
172.87.128.0/18AS11427Charter Communications IncUnited Statesvalid172026-10-02
172.87.192.0/24AS26658HTUnited Statesvalid172026-10-02
172.87.193.0/24AS26658HTUnited Statesvalid162026-10-02
172.87.194.0/23AS26658HTUnited Statesvalid162026-10-02
172.87.196.0/22AS26658HTUnited Statesvalid162026-10-02
172.87.200.0/21AS26658HTUnited Statesvalid162026-10-02
172.87.208.0/20AS26658HTUnited Statesvalid162026-10-02
172.87.224.0/22AS63298Fatbeam, LLCUnited Statesnot found162026-10-02
172.87.230.0/24AS195253E COMPANY ENVIRONMENTAL, ECOLOGICAL AND ENGINEERINGUnited Statesnot found162026-10-02
172.87.232.0/21AS394925OptimERA xGUnited Statesnot found162026-10-02

Every /24 inside it

172.87.0.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY501.95%
172.87.1.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.2.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.3.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY501.95%
172.87.4.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY501.95%
172.87.5.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY803.13%
172.87.6.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY903.52%
172.87.7.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY401.56%
172.87.8.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY401.56%
172.87.9.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.10.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.11.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.12.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY200.78%
172.87.13.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY501.95%
172.87.14.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY301.17%
172.87.15.0/24United StatesAS20283CONSOLIDATED TELEPHONE COMPANY401.56%
172.87.16.0/24United StatesAS30600Metronet10256100.00%
172.87.17.0/24United StatesAS30600Metronet18256100.00%
172.87.18.0/24United StatesAS30600Metronet179069.92%
172.87.19.0/24United StatesAS30600Metronet13256100.00%
172.87.20.0/24United StatesAS30600Metronet25256100.00%
172.87.21.0/24United StatesAS30600Metronet3256100.00%
172.87.22.0/24United StatesAS30600Metronet11256100.00%
172.87.23.0/24United StatesAS30600Metronet14256100.00%
172.87.24.0/24United StatesAS21859Zenlayer Inc0256100.00%
172.87.25.0/24United StatesAS21859Zenlayer Inc0256100.00%
172.87.26.0/24United StatesAS21859Zenlayer Inc0256100.00%
172.87.27.0/24United StatesAS393889EightJoy Network LLC12256100.00%
172.87.28.0/24United StatesAS393889EightJoy Network LLC6256100.00%
172.87.29.0/24United StatesAS393889EightJoy Network LLC0256100.00%
172.87.30.0/24United StatesAS393889EightJoy Network LLC8256100.00%
172.87.31.0/24United StatesAS393889EightJoy Network LLC9256100.00%
172.87.32.0/24United StatesAS30517Missouri Network Alliance, LLC200.78%
172.87.33.0/24United StatesAS30517Missouri Network Alliance, LLC702.73%
172.87.34.0/24United StatesAS30517Missouri Network Alliance, LLC501.95%
172.87.35.0/24United StatesAS30517Missouri Network Alliance, LLC301.17%
172.87.36.0/24United StatesAS23005SWITCH, LTD0256100.00%
172.87.37.0/24United StatesAS23005SWITCH, LTD0256100.00%
172.87.38.0/24United StatesAS23005SWITCH, LTD0256100.00%
172.87.39.0/24United StatesAS23005SWITCH, LTD0256100.00%
172.87.40.0/24United StatesAS21646Fisher Investments Inc.100.39%
172.87.41.0/24United States—000.00%
172.87.42.0/24United States—000.00%
172.87.43.0/24United States—000.00%
172.87.44.0/24United StatesAS401462Subaru of Indiana Automotive, Inc.100.39%
172.87.45.0/24United StatesAS401462Subaru of Indiana Automotive, Inc.000.00%
172.87.46.0/24United StatesAS394714Data Recognition Corporation000.00%
172.87.47.0/24United StatesAS401484Astera Labs000.00%
172.87.48.0/24United StatesAS15294Sentinel Technologies, Inc.602.34%
172.87.49.0/24United StatesAS15294Sentinel Technologies, Inc.82032.03%
172.87.50.0/24United StatesAS15294Sentinel Technologies, Inc.63024.61%
172.87.51.0/24United StatesAS15294Sentinel Technologies, Inc.58256100.00%
172.87.52.0/24United States—000.00%
172.87.53.0/24United States—000.00%
172.87.54.0/24United States—000.00%
172.87.55.0/24United States—000.00%
172.87.56.0/24United StatesAS15294Sentinel Technologies, Inc.200.78%
172.87.57.0/24United StatesAS15294Sentinel Technologies, Inc.41016.02%
172.87.58.0/24United StatesAS15294Sentinel Technologies, Inc.150058.59%
172.87.59.0/24United StatesAS15294Sentinel Technologies, Inc.301.17%
172.87.60.0/24United StatesAS15294Sentinel Technologies, Inc.000.00%
172.87.61.0/24United StatesAS15294Sentinel Technologies, Inc.138053.91%
172.87.62.0/24United StatesAS15294Sentinel Technologies, Inc.100.39%
172.87.63.0/24United StatesAS15294Sentinel Technologies, Inc.000.00%
172.87.64.0/24United StatesAS40181Elite Systems, LLC301.17%
172.87.65.0/24United StatesAS40181Elite Systems, LLC8256100.00%
172.87.66.0/24United StatesAS40181Elite Systems, LLC501.95%
172.87.67.0/24United StatesAS40181Elite Systems, LLC6256100.00%
172.87.68.0/24United StatesAS40181Elite Systems, LLC6256100.00%
172.87.69.0/24United StatesAS40181Elite Systems, LLC200.78%
172.87.70.0/24United StatesAS40181Elite Systems, LLC301.17%
172.87.71.0/24United StatesAS40181Elite Systems, LLC100.39%
172.87.72.0/24United StatesAS19264TeleCurve, LLC000.00%
172.87.73.0/24United StatesAS19264TeleCurve, LLC000.00%
172.87.74.0/24United StatesAS19264TeleCurve, LLC000.00%
172.87.75.0/24United StatesAS19264TeleCurve, LLC000.00%
172.87.76.0/24United StatesAS393951Hortons TV & Electronics Inc0256100.00%
172.87.77.0/24United StatesAS393951Hortons TV & Electronics Inc1256100.00%
172.87.78.0/24United StatesAS393951Hortons TV & Electronics Inc0256100.00%
172.87.79.0/24United StatesAS393951Hortons TV & Electronics Inc2256100.00%
172.87.80.0/24CanadaAS40788Start Communications000.00%
172.87.81.0/24CanadaAS40788Start Communications000.00%
172.87.82.0/24CanadaAS40788Start Communications000.00%
172.87.83.0/24CanadaAS40788Start Communications000.00%
172.87.84.0/24CanadaAS40788Start Communications000.00%
172.87.85.0/24CanadaAS40788Start Communications000.00%
172.87.86.0/24CanadaAS40788Start Communications000.00%
172.87.87.0/24CanadaAS40788Start Communications000.00%
172.87.88.0/24CanadaAS40788Start Communications000.00%
172.87.89.0/24CanadaAS40788Start Communications000.00%
172.87.90.0/24CanadaAS40788Start Communications000.00%
172.87.91.0/24CanadaAS40788Start Communications000.00%
172.87.92.0/24CanadaAS40788Start Communications000.00%
172.87.93.0/24CanadaAS40788Start Communications000.00%
172.87.94.0/24CanadaAS40788Start Communications000.00%
172.87.95.0/24CanadaAS40788Start Communications000.00%
172.87.96.0/24United StatesAS36658Angelo State University1104.30%
172.87.97.0/24United StatesAS36658Angelo State University1003.91%
172.87.98.0/24United StatesAS36658Angelo State University401.56%
172.87.99.0/24United StatesAS36658Angelo State University602.34%
172.87.100.0/24United StatesAS36658Angelo State University401.56%
172.87.101.0/24United StatesAS36658Angelo State University401.56%
172.87.102.0/24United StatesAS36658Angelo State University803.13%
172.87.103.0/24United StatesAS36658Angelo State University501.95%
172.87.104.0/24United StatesAS36658Angelo State University200.78%
172.87.105.0/24United StatesAS36658Angelo State University903.52%
172.87.106.0/24United StatesAS36658Angelo State University000.00%
172.87.107.0/24United StatesAS36658Angelo State University000.00%
172.87.108.0/24United StatesAS36658Angelo State University000.00%
172.87.109.0/24United StatesAS36658Angelo State University000.00%
172.87.110.0/24United StatesAS36658Angelo State University000.00%
172.87.111.0/24United StatesAS36658Angelo State University000.00%
172.87.112.0/24United StatesAS36658Angelo State University501.95%
172.87.113.0/24United StatesAS36658Angelo State University401.56%
172.87.114.0/24United StatesAS36658Angelo State University200.78%
172.87.115.0/24United StatesAS36658Angelo State University401.56%
172.87.116.0/24United StatesAS36658Angelo State University803.13%
172.87.117.0/24United StatesAS36658Angelo State University501.95%
172.87.118.0/24United StatesAS36658Angelo State University200.78%
172.87.119.0/24United StatesAS36658Angelo State University1003.91%
172.87.120.0/24United StatesAS36658Angelo State University702.73%
172.87.121.0/24United StatesAS36658Angelo State University200.78%
172.87.122.0/24United StatesAS36658Angelo State University501.95%
172.87.123.0/24United StatesAS36658Angelo State University000.00%
172.87.124.0/24United StatesAS36658Angelo State University000.00%
172.87.125.0/24United StatesAS36658Angelo State University000.00%
172.87.126.0/24United StatesAS36658Angelo State University000.00%
172.87.127.0/24United StatesAS36658Angelo State University000.00%
172.87.128.0/24United StatesAS11427Charter Communications Inc1003.91%
172.87.129.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.130.0/24United StatesAS11427Charter Communications Inc200.78%
172.87.131.0/24United StatesAS11427Charter Communications Inc903.52%
172.87.132.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.133.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.134.0/24United StatesAS11427Charter Communications Inc1807.03%
172.87.135.0/24United StatesAS11427Charter Communications Inc401.56%
172.87.136.0/24United StatesAS11427Charter Communications Inc1104.30%
172.87.137.0/24United StatesAS11427Charter Communications Inc1305.08%
172.87.138.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.139.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.140.0/24United StatesAS11427Charter Communications Inc1104.30%
172.87.141.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.142.0/24United StatesAS11427Charter Communications Inc1505.86%
172.87.143.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.144.0/24United StatesAS11427Charter Communications Inc702.73%
172.87.145.0/24United StatesAS11427Charter Communications Inc1706.64%
172.87.146.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.147.0/24United StatesAS11427Charter Communications Inc200.78%
172.87.148.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.149.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.150.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.151.0/24United StatesAS11427Charter Communications Inc903.52%
172.87.152.0/24United StatesAS11427Charter Communications Inc1204.69%
172.87.153.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.154.0/24United StatesAS11427Charter Communications Inc1104.30%
172.87.155.0/24United StatesAS11427Charter Communications Inc200.78%
172.87.156.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.157.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.158.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.159.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.160.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.161.0/24United StatesAS11427Charter Communications Inc1003.91%
172.87.162.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.163.0/24United StatesAS11427Charter Communications Inc1204.69%
172.87.164.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.165.0/24United StatesAS11427Charter Communications Inc702.73%
172.87.166.0/24United StatesAS11427Charter Communications Inc1606.25%
172.87.167.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.168.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.169.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.170.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.171.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.172.0/24United StatesAS11427Charter Communications Inc200.78%
172.87.173.0/24United StatesAS11427Charter Communications Inc1003.91%
172.87.174.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.175.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.176.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.177.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.178.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.179.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.180.0/24United StatesAS11427Charter Communications Inc1204.69%
172.87.181.0/24United StatesAS11427Charter Communications Inc1305.08%
172.87.182.0/24United StatesAS11427Charter Communications Inc803.13%
172.87.183.0/24United StatesAS11427Charter Communications Inc401.56%
172.87.184.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.185.0/24United StatesAS11427Charter Communications Inc200.78%
172.87.186.0/24United StatesAS11427Charter Communications Inc602.34%
172.87.187.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.188.0/24United StatesAS11427Charter Communications Inc301.17%
172.87.189.0/24United StatesAS11427Charter Communications Inc401.56%
172.87.190.0/24United StatesAS11427Charter Communications Inc501.95%
172.87.191.0/24United StatesAS11427Charter Communications Inc702.73%
172.87.192.0/24United StatesAS26658HT0256100.00%
172.87.193.0/24United StatesAS26658HT0256100.00%
172.87.194.0/24United StatesAS26658HT0256100.00%
172.87.195.0/24United StatesAS26658HT0256100.00%
172.87.196.0/24United StatesAS26658HT0256100.00%
172.87.197.0/24United StatesAS26658HT0256100.00%
172.87.198.0/24United StatesAS26658HT0256100.00%
172.87.199.0/24United StatesAS26658HT0256100.00%
172.87.200.0/24United StatesAS26658HT0256100.00%
172.87.201.0/24United StatesAS26658HT0256100.00%
172.87.202.0/24United StatesAS26658HT0256100.00%
172.87.203.0/24United StatesAS26658HT0256100.00%
172.87.204.0/24United StatesAS26658HT0256100.00%
172.87.205.0/24United StatesAS26658HT0256100.00%
172.87.206.0/24United StatesAS26658HT0256100.00%
172.87.207.0/24United StatesAS26658HT0256100.00%
172.87.208.0/24United StatesAS26658HT0256100.00%
172.87.209.0/24United StatesAS26658HT0256100.00%
172.87.210.0/24United StatesAS26658HT0256100.00%
172.87.211.0/24United StatesAS26658HT0256100.00%
172.87.212.0/24United StatesAS26658HT0256100.00%
172.87.213.0/24United StatesAS26658HT0256100.00%
172.87.214.0/24United StatesAS26658HT0256100.00%
172.87.215.0/24United StatesAS26658HT0256100.00%
172.87.216.0/24United StatesAS26658HT0256100.00%
172.87.217.0/24United StatesAS26658HT0256100.00%
172.87.218.0/24United StatesAS26658HT0256100.00%
172.87.219.0/24United StatesAS26658HT0256100.00%
172.87.220.0/24United StatesAS26658HT0256100.00%
172.87.221.0/24United StatesAS26658HT0256100.00%
172.87.222.0/24United StatesAS26658HT0256100.00%
172.87.223.0/24United StatesAS26658HT0256100.00%
172.87.224.0/24United StatesAS63298Fatbeam, LLC501.95%
172.87.225.0/24United StatesAS63298Fatbeam, LLC602.34%
172.87.226.0/24United StatesAS63298Fatbeam, LLC100.39%
172.87.227.0/24United StatesAS63298Fatbeam, LLC200.78%
172.87.228.0/24United States—000.00%
172.87.229.0/24United States—000.00%
172.87.230.0/24United StatesAS195253E COMPANY ENVIRONMENTAL, ECOLOGICAL AND ENGINEERING100.39%
172.87.231.0/24United States—000.00%
172.87.232.0/24United StatesAS394925OptimERA xG7256100.00%
172.87.233.0/24United StatesAS394925OptimERA xG401.56%
172.87.234.0/24United StatesAS394925OptimERA xG301.17%
172.87.235.0/24United StatesAS394925OptimERA xG000.00%
172.87.236.0/24United StatesAS394925OptimERA xG000.00%
172.87.237.0/24United StatesAS394925OptimERA xG000.00%
172.87.238.0/24United StatesAS394925OptimERA xG000.00%
172.87.239.0/24United StatesAS394925OptimERA xG8256100.00%
172.87.240.0/24United States—000.00%
172.87.241.0/24United States—000.00%
172.87.242.0/24United States—000.00%
172.87.243.0/24United States—000.00%
172.87.244.0/24United States—000.00%
172.87.245.0/24United States—000.00%
172.87.246.0/24United States—000.00%
172.87.247.0/24United States—000.00%
172.87.248.0/24United States—000.00%
172.87.249.0/24United States—000.00%
172.87.250.0/24United States—000.00%
172.87.251.0/24United States—000.00%
172.87.252.0/24United States—000.00%
172.87.253.0/24United States—000.00%
172.87.254.0/24United States—000.00%
172.87.255.0/24United States—000.00%
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.