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InternetData
65,536 routable18 ASes
/16 subnet

203.100.0.0/16

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
10
countries
18
announcing ASes
42
announced prefixes
775
anonymous addresses

Where it is

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

  1. China22,784 · 34.77%
  2. Australia17,152 · 26.17%
  3. South Korea8,192 · 12.50%
  4. Japan7,936 · 12.11%
  5. India4,096 · 6.25%
  6. United States4,096 · 6.25%
  7. Hong Kong512 · 0.78%
  8. Indonesia256 · 0.39%
  9. New Zealand256 · 0.39%
  10. Singapore256 · 0.39%

Who announces it

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

  1. AS1221Telstra Limited8,192 · 12.50%
  2. AS17839LG HelloVision Corp.8,192 · 12.50%
  3. AS24436University of Queensland8,192 · 12.50%
  4. AS23724IDC, China Telecommunications Corporation5,120 · 7.81%
  5. AS18779EGIHosting2,048 · 3.13%
  6. AS9430Software Technology Parks of India,Block-IV1,280 · 1.95%
  7. AS24515Software Technology Parks of India-Jaipur1,024 · 1.56%
  8. AS35758Rachamim Aviel Twito1,024 · 1.56%
  9. AS11404Wave Broadband768 · 1.17%
  10. AS23764CTGNet512 · 0.78%

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.

42 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
203.100.0.0/20AS24436University of QueenslandAustraliaNot found192026-10-02
203.100.16.0/20AS24436University of QueenslandAustraliaNot found192026-10-02
203.100.30.0/23AS24436University of QueenslandAustraliaNot found192026-10-28
203.100.52.0/24AS23764CTGNetHong KongValid172026-10-02
203.100.54.0/24AS23764CTGNetHong KongValid172026-10-02
203.100.56.0/24AS38905ELLERSTON CAPITAL LIMITEDAustraliaNot found172026-10-02
203.100.57.0/24AS149948PT Magna NetworkIndonesiaValid182026-10-02
203.100.59.0/24AS38911KeystartAustraliaValid172026-10-02
203.100.61.0/24AS45118Australian Nursing Federation Industrial Union of Workers PerthAustraliaNot found172026-10-02
203.100.62.0/24AS154275Silver Fern Farms LimitedNew ZealandValid172026-10-02
203.100.66.0/24AS9430Software Technology Parks of India,Block-IVIndiaNot found172026-10-02
203.100.68.0/24AS9430Software Technology Parks of India,Block-IVIndiaNot found172026-10-02
203.100.70.0/24AS9430Software Technology Parks of India,Block-IVIndiaNot found172026-10-02
203.100.73.0/24AS24515Software Technology Parks of India-JaipurIndiaNot found172026-10-02
203.100.74.0/24AS24515Software Technology Parks of India-JaipurIndiaNot found172026-10-02
203.100.75.0/24AS38536Software Technology Parks of India,IndiaNot found172026-10-02
203.100.76.0/24AS24515Software Technology Parks of India-JaipurIndiaNot found172026-10-02
203.100.77.0/24AS24515Software Technology Parks of India-JaipurIndiaNot found172026-10-02
203.100.78.0/24AS9430Software Technology Parks of India,Block-IVIndiaNot found172026-10-02
203.100.79.0/24AS9430Software Technology Parks of India,Block-IVIndiaNot found172026-10-02
203.100.92.0/22AS23724IDC, China Telecommunications CorporationChinaValid172026-10-02
203.100.135.0/24AS4637Telstra GlobalSingaporeValid172026-10-02
203.100.160.0/19AS38091LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.160.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.162.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.164.0/22AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.168.0/21AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.173.0/24AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.176.0/22AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.180.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.182.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.184.0/22AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.188.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.190.0/23AS17839LG HelloVision Corp.South KoreaNot found172026-10-02
203.100.192.0/20AS23724IDC, China Telecommunications CorporationChinaValid172026-10-02
203.100.208.0/20AS18779EGIHostingUnited StatesNot found172026-10-02
203.100.208.0/23AS11404Wave BroadbandUnited StatesValid172026-10-02
203.100.210.0/24AS10753Level 3 Parent, LLCUnited StatesValid172026-10-02
203.100.211.0/24AS11404Wave BroadbandUnited StatesValid172026-10-02
203.100.212.0/22AS35758Rachamim Aviel TwitoUnited StatesValid172026-10-02
203.100.216.0/21AS18779EGIHostingUnited StatesValid172026-10-02
203.100.224.0/19AS1221Telstra LimitedAustraliaValid172026-10-02

Every /24 inside it

203.100.0.0/24AustraliaAS24436University of Queensland200.78%
203.100.1.0/24AustraliaAS24436University of Queensland1907.42%
203.100.2.0/24AustraliaAS24436University of Queensland903.52%
203.100.3.0/24AustraliaAS24436University of Queensland1907.42%
203.100.4.0/24AustraliaAS24436University of Queensland602.34%
203.100.5.0/24AustraliaAS24436University of Queensland1104.30%
203.100.6.0/24AustraliaAS24436University of Queensland903.52%
203.100.7.0/24AustraliaAS24436University of Queensland501.95%
203.100.8.0/24AustraliaAS24436University of Queensland401.56%
203.100.9.0/24AustraliaAS24436University of Queensland1907.42%
203.100.10.0/24AustraliaAS24436University of Queensland000.00%
203.100.11.0/24AustraliaAS24436University of Queensland000.00%
203.100.12.0/24AustraliaAS24436University of Queensland1405.47%
203.100.13.0/24AustraliaAS24436University of Queensland000.00%
203.100.14.0/24AustraliaAS24436University of Queensland000.00%
203.100.15.0/24AustraliaAS24436University of Queensland000.00%
203.100.16.0/24AustraliaAS24436University of Queensland000.00%
203.100.17.0/24AustraliaAS24436University of Queensland000.00%
203.100.18.0/24AustraliaAS24436University of Queensland100.39%
203.100.19.0/24AustraliaAS24436University of Queensland000.00%
203.100.20.0/24AustraliaAS24436University of Queensland000.00%
203.100.21.0/24AustraliaAS24436University of Queensland000.00%
203.100.22.0/24AustraliaAS24436University of Queensland000.00%
203.100.23.0/24AustraliaAS24436University of Queensland000.00%
203.100.24.0/24AustraliaAS24436University of Queensland000.00%
203.100.25.0/24AustraliaAS24436University of Queensland000.00%
203.100.26.0/24AustraliaAS24436University of Queensland000.00%
203.100.27.0/24AustraliaAS24436University of Queensland000.00%
203.100.28.0/24AustraliaAS24436University of Queensland000.00%
203.100.29.0/24AustraliaAS24436University of Queensland000.00%
203.100.30.0/24AustraliaAS24436University of Queensland000.00%
203.100.31.0/24AustraliaAS24436University of Queensland000.00%
203.100.32.0/24China—000.00%
203.100.33.0/24China—000.00%
203.100.34.0/24China—000.00%
203.100.35.0/24China—000.00%
203.100.36.0/24China—000.00%
203.100.37.0/24China—000.00%
203.100.38.0/24China—000.00%
203.100.39.0/24China—000.00%
203.100.40.0/24China—000.00%
203.100.41.0/24China—000.00%
203.100.42.0/24China—000.00%
203.100.43.0/24China—000.00%
203.100.44.0/24China—000.00%
203.100.45.0/24China—000.00%
203.100.46.0/24China—000.00%
203.100.47.0/24China—000.00%
203.100.48.0/24China—000.00%
203.100.49.0/24China—000.00%
203.100.50.0/24China—000.00%
203.100.51.0/24China—000.00%
203.100.52.0/24Hong KongAS23764CTGNet000.00%
203.100.53.0/24China—000.00%
203.100.54.0/24Hong KongAS23764CTGNet000.00%
203.100.55.0/24China—000.00%
203.100.56.0/24AustraliaAS38905ELLERSTON CAPITAL LIMITED200.78%
203.100.57.0/24IndonesiaAS149948PT Magna Network702.73%
203.100.58.0/24China—000.00%
203.100.59.0/24AustraliaAS38911Keystart000.00%
203.100.60.0/24China—000.00%
203.100.61.0/24AustraliaAS45118Australian Nursing Federation Industrial Union of Workers Perth1003.91%
203.100.62.0/24New ZealandAS154275Silver Fern Farms Limited200.78%
203.100.63.0/24China—000.00%
203.100.64.0/24India—000.00%
203.100.65.0/24India—000.00%
203.100.66.0/24IndiaAS9430Software Technology Parks of India,Block-IV000.00%
203.100.67.0/24India—000.00%
203.100.68.0/24IndiaAS9430Software Technology Parks of India,Block-IV100.39%
203.100.69.0/24India—000.00%
203.100.70.0/24IndiaAS9430Software Technology Parks of India,Block-IV000.00%
203.100.71.0/24India—000.00%
203.100.72.0/24India—000.00%
203.100.73.0/24IndiaAS24515Software Technology Parks of India-Jaipur301.17%
203.100.74.0/24IndiaAS24515Software Technology Parks of India-Jaipur100.39%
203.100.75.0/24IndiaAS38536Software Technology Parks of India,602.34%
203.100.76.0/24IndiaAS24515Software Technology Parks of India-Jaipur000.00%
203.100.77.0/24IndiaAS24515Software Technology Parks of India-Jaipur401.56%
203.100.78.0/24IndiaAS9430Software Technology Parks of India,Block-IV1204.69%
203.100.79.0/24IndiaAS9430Software Technology Parks of India,Block-IV100.39%
203.100.80.0/24China—000.00%
203.100.81.0/24China—000.00%
203.100.82.0/24China—000.00%
203.100.83.0/24China—000.00%
203.100.84.0/24China—000.00%
203.100.85.0/24China—000.00%
203.100.86.0/24China—000.00%
203.100.87.0/24China—000.00%
203.100.88.0/24China—000.00%
203.100.89.0/24China—000.00%
203.100.90.0/24China—000.00%
203.100.91.0/24China—000.00%
203.100.92.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.93.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.94.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.95.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.96.0/24China—000.00%
203.100.97.0/24China—000.00%
203.100.98.0/24China—000.00%
203.100.99.0/24China—000.00%
203.100.100.0/24China—000.00%
203.100.101.0/24China—000.00%
203.100.102.0/24China—000.00%
203.100.103.0/24China—000.00%
203.100.104.0/24China—000.00%
203.100.105.0/24China—000.00%
203.100.106.0/24China—000.00%
203.100.107.0/24China—000.00%
203.100.108.0/24China—000.00%
203.100.109.0/24China—000.00%
203.100.110.0/24China—000.00%
203.100.111.0/24China—000.00%
203.100.112.0/24China—000.00%
203.100.113.0/24China—000.00%
203.100.114.0/24China—000.00%
203.100.115.0/24China—000.00%
203.100.116.0/24China—000.00%
203.100.117.0/24China—000.00%
203.100.118.0/24China—000.00%
203.100.119.0/24China—000.00%
203.100.120.0/24China—000.00%
203.100.121.0/24China—000.00%
203.100.122.0/24China—000.00%
203.100.123.0/24China—000.00%
203.100.124.0/24China—000.00%
203.100.125.0/24China—000.00%
203.100.126.0/24China—000.00%
203.100.127.0/24China—000.00%
203.100.128.0/24Japan—000.00%
203.100.129.0/24Japan—000.00%
203.100.130.0/24Japan—000.00%
203.100.131.0/24Japan—000.00%
203.100.132.0/24Japan—000.00%
203.100.133.0/24Japan—000.00%
203.100.134.0/24Japan—000.00%
203.100.135.0/24SingaporeAS4637Telstra Global000.00%
203.100.136.0/24Japan—000.00%
203.100.137.0/24Japan—000.00%
203.100.138.0/24Japan—000.00%
203.100.139.0/24Japan—000.00%
203.100.140.0/24Japan—000.00%
203.100.141.0/24Japan—000.00%
203.100.142.0/24Japan—000.00%
203.100.143.0/24Japan—000.00%
203.100.144.0/24Japan—000.00%
203.100.145.0/24Japan—000.00%
203.100.146.0/24Japan—000.00%
203.100.147.0/24Japan—000.00%
203.100.148.0/24Japan—000.00%
203.100.149.0/24Japan—000.00%
203.100.150.0/24Japan—000.00%
203.100.151.0/24Japan—000.00%
203.100.152.0/24Japan—000.00%
203.100.153.0/24Japan—000.00%
203.100.154.0/24Japan—000.00%
203.100.155.0/24Japan—000.00%
203.100.156.0/24Japan—000.00%
203.100.157.0/24Japan—000.00%
203.100.158.0/24Japan—000.00%
203.100.159.0/24Japan—000.00%
203.100.160.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.161.0/24South KoreaAS17839LG HelloVision Corp.803.13%
203.100.162.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.163.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.164.0/24South KoreaAS17839LG HelloVision Corp.301.17%
203.100.165.0/24South KoreaAS17839LG HelloVision Corp.200.78%
203.100.166.0/24South KoreaAS17839LG HelloVision Corp.301.17%
203.100.167.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.168.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.169.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.170.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.171.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.172.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.173.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.174.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.175.0/24South KoreaAS17839LG HelloVision Corp.200.78%
203.100.176.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.177.0/24South KoreaAS17839LG HelloVision Corp.200.78%
203.100.178.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.179.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.180.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.181.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.182.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.183.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.184.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.185.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.186.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.187.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.188.0/24South KoreaAS17839LG HelloVision Corp.100.39%
203.100.189.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.190.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.191.0/24South KoreaAS17839LG HelloVision Corp.000.00%
203.100.192.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.193.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.194.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.195.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.196.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.197.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.198.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.199.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.200.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.201.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.202.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.203.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.204.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.205.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.206.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.207.0/24ChinaAS23724IDC, China Telecommunications Corporation0256100.00%
203.100.208.0/24United StatesAS11404Wave Broadband000.00%
203.100.209.0/24United StatesAS11404Wave Broadband000.00%
203.100.210.0/24United StatesAS10753Level 3 Parent, LLC000.00%
203.100.211.0/24United StatesAS11404Wave Broadband000.00%
203.100.212.0/24United StatesAS35758Rachamim Aviel Twito148256100.00%
203.100.213.0/24United StatesAS35758Rachamim Aviel Twito148256100.00%
203.100.214.0/24United StatesAS35758Rachamim Aviel Twito148256100.00%
203.100.215.0/24United StatesAS35758Rachamim Aviel Twito136256100.00%
203.100.216.0/24United StatesAS18779EGIHosting0256100.00%
203.100.217.0/24United StatesAS18779EGIHosting0256100.00%
203.100.218.0/24United StatesAS18779EGIHosting0256100.00%
203.100.219.0/24United StatesAS18779EGIHosting0256100.00%
203.100.220.0/24United StatesAS18779EGIHosting0256100.00%
203.100.221.0/24United StatesAS18779EGIHosting0256100.00%
203.100.222.0/24United StatesAS18779EGIHosting0256100.00%
203.100.223.0/24United StatesAS18779EGIHosting0256100.00%
203.100.224.0/24AustraliaAS1221Telstra Limited000.00%
203.100.225.0/24AustraliaAS1221Telstra Limited000.00%
203.100.226.0/24AustraliaAS1221Telstra Limited000.00%
203.100.227.0/24AustraliaAS1221Telstra Limited000.00%
203.100.228.0/24AustraliaAS1221Telstra Limited000.00%
203.100.229.0/24AustraliaAS1221Telstra Limited000.00%
203.100.230.0/24AustraliaAS1221Telstra Limited000.00%
203.100.231.0/24AustraliaAS1221Telstra Limited000.00%
203.100.232.0/24AustraliaAS1221Telstra Limited000.00%
203.100.233.0/24AustraliaAS1221Telstra Limited000.00%
203.100.234.0/24AustraliaAS1221Telstra Limited000.00%
203.100.235.0/24AustraliaAS1221Telstra Limited000.00%
203.100.236.0/24AustraliaAS1221Telstra Limited000.00%
203.100.237.0/24AustraliaAS1221Telstra Limited000.00%
203.100.238.0/24AustraliaAS1221Telstra Limited000.00%
203.100.239.0/24AustraliaAS1221Telstra Limited000.00%
203.100.240.0/24AustraliaAS1221Telstra Limited000.00%
203.100.241.0/24AustraliaAS1221Telstra Limited000.00%
203.100.242.0/24AustraliaAS1221Telstra Limited000.00%
203.100.243.0/24AustraliaAS1221Telstra Limited000.00%
203.100.244.0/24AustraliaAS1221Telstra Limited000.00%
203.100.245.0/24AustraliaAS1221Telstra Limited000.00%
203.100.246.0/24AustraliaAS1221Telstra Limited000.00%
203.100.247.0/24AustraliaAS1221Telstra Limited000.00%
203.100.248.0/24AustraliaAS1221Telstra Limited000.00%
203.100.249.0/24AustraliaAS1221Telstra Limited000.00%
203.100.250.0/24AustraliaAS1221Telstra Limited000.00%
203.100.251.0/24AustraliaAS1221Telstra Limited000.00%
203.100.252.0/24AustraliaAS1221Telstra Limited000.00%
203.100.253.0/24AustraliaAS1221Telstra Limited000.00%
203.100.254.0/24AustraliaAS1221Telstra Limited000.00%
203.100.255.0/24AustraliaAS1221Telstra Limited000.00%
00 · Evaluate

Test the real build first.

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01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
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