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InternetData
65,536 routable8 ASes
/16 subnet

203.133.0.0/16

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
8
announcing ASes
26
announced prefixes
207
anonymous addresses

Where it is

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

  1. Taiwan32,768 · 50.00%
  2. Japan22,528 · 34.38%
  3. South Korea8,192 · 12.50%
  4. Australia1,024 · 1.56%
  5. Pakistan1,024 · 1.56%

Who announces it

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

  1. AS9416KBT32,512 · 49.61%
  2. AS7524ITEC HANKYU HANSHIN CO.,LTD.12,288 · 18.75%
  3. AS9351ZTV CO.,LTD8,192 · 12.50%
  4. AS10003Ogaki Cable Television Co.,Inc.2,048 · 3.13%
  5. AS18160Kakao Corp2,048 · 3.13%
  6. AS4608APNIC512 · 0.78%
  7. AS10178Kakaopay Corp256 · 0.39%
  8. AS38851TNET256 · 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.

26 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
203.133.0.0/17AS9416KBTTaiwanValid182026-10-02
203.133.9.0/24AS9416KBTTaiwanValid172026-10-02
203.133.18.0/24AS9416KBTTaiwanValid172026-10-02
203.133.25.0/24AS9416KBTTaiwanValid172026-10-02
203.133.56.0/24AS38851TNETTaiwanValid182026-10-02
203.133.128.0/19AS9351ZTV CO.,LTDJapanValid172026-10-02
203.133.161.0/24AS10178Kakaopay CorpSouth KoreaNot found182026-10-02
203.133.184.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.185.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.186.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.187.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.188.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.189.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.190.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.191.0/24AS18160Kakao CorpSouth KoreaNot found172026-10-02
203.133.192.0/19AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found172026-10-02
203.133.192.0/20AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found172026-10-02
203.133.192.0/21AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found42026-10-02
203.133.208.0/20AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found172026-10-02
203.133.224.0/20AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found172026-10-02
203.133.224.0/21AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found42026-10-02
203.133.232.0/21AS7524ITEC HANKYU HANSHIN CO.,LTD.JapanNot found172026-10-02
203.133.240.0/21AS10003Ogaki Cable Television Co.,Inc.JapanNot found172026-10-02
203.133.248.0/23AS4608APNICAustraliaValid192026-10-02
203.133.248.0/24AS4608APNICAustraliaValid192026-10-02
203.133.249.0/24AS4608APNICAustraliaValid172026-10-02

Every /24 inside it

203.133.0.0/24TaiwanAS9416KBT000.00%
203.133.1.0/24TaiwanAS9416KBT000.00%
203.133.2.0/24TaiwanAS9416KBT000.00%
203.133.3.0/24TaiwanAS9416KBT000.00%
203.133.4.0/24TaiwanAS9416KBT000.00%
203.133.5.0/24TaiwanAS9416KBT100.39%
203.133.6.0/24TaiwanAS9416KBT000.00%
203.133.7.0/24TaiwanAS9416KBT0249.38%
203.133.8.0/24TaiwanAS9416KBT041.56%
203.133.9.0/24TaiwanAS9416KBT0256100.00%
203.133.10.0/24TaiwanAS9416KBT072.73%
203.133.11.0/24TaiwanAS9416KBT03212.50%
203.133.12.0/24TaiwanAS9416KBT000.00%
203.133.13.0/24TaiwanAS9416KBT000.00%
203.133.14.0/24TaiwanAS9416KBT000.00%
203.133.15.0/24TaiwanAS9416KBT000.00%
203.133.16.0/24TaiwanAS9416KBT0103.91%
203.133.17.0/24TaiwanAS9416KBT0103.91%
203.133.18.0/24TaiwanAS9416KBT017066.41%
203.133.19.0/24TaiwanAS9416KBT000.00%
203.133.20.0/24TaiwanAS9416KBT000.00%
203.133.21.0/24TaiwanAS9416KBT000.00%
203.133.22.0/24TaiwanAS9416KBT000.00%
203.133.23.0/24TaiwanAS9416KBT000.00%
203.133.24.0/24TaiwanAS9416KBT000.00%
203.133.25.0/24TaiwanAS9416KBT100.39%
203.133.26.0/24TaiwanAS9416KBT000.00%
203.133.27.0/24TaiwanAS9416KBT000.00%
203.133.28.0/24TaiwanAS9416KBT401.56%
203.133.29.0/24TaiwanAS9416KBT000.00%
203.133.30.0/24TaiwanAS9416KBT000.00%
203.133.31.0/24TaiwanAS9416KBT000.00%
203.133.32.0/24TaiwanAS9416KBT000.00%
203.133.33.0/24TaiwanAS9416KBT000.00%
203.133.34.0/24TaiwanAS9416KBT000.00%
203.133.35.0/24TaiwanAS9416KBT000.00%
203.133.36.0/24TaiwanAS9416KBT000.00%
203.133.37.0/24TaiwanAS9416KBT000.00%
203.133.38.0/24TaiwanAS9416KBT000.00%
203.133.39.0/24TaiwanAS9416KBT000.00%
203.133.40.0/24TaiwanAS9416KBT000.00%
203.133.41.0/24TaiwanAS9416KBT000.00%
203.133.42.0/24TaiwanAS9416KBT000.00%
203.133.43.0/24TaiwanAS9416KBT000.00%
203.133.44.0/24TaiwanAS9416KBT000.00%
203.133.45.0/24TaiwanAS9416KBT000.00%
203.133.46.0/24TaiwanAS9416KBT000.00%
203.133.47.0/24TaiwanAS9416KBT000.00%
203.133.48.0/24TaiwanAS9416KBT000.00%
203.133.49.0/24TaiwanAS9416KBT000.00%
203.133.50.0/24TaiwanAS9416KBT000.00%
203.133.51.0/24TaiwanAS9416KBT000.00%
203.133.52.0/24TaiwanAS9416KBT000.00%
203.133.53.0/24TaiwanAS9416KBT000.00%
203.133.54.0/24TaiwanAS9416KBT000.00%
203.133.55.0/24TaiwanAS9416KBT000.00%
203.133.56.0/24TaiwanAS38851TNET100.39%
203.133.57.0/24TaiwanAS9416KBT000.00%
203.133.58.0/24TaiwanAS9416KBT000.00%
203.133.59.0/24TaiwanAS9416KBT000.00%
203.133.60.0/24TaiwanAS9416KBT000.00%
203.133.61.0/24TaiwanAS9416KBT000.00%
203.133.62.0/24TaiwanAS9416KBT000.00%
203.133.63.0/24TaiwanAS9416KBT000.00%
203.133.64.0/24TaiwanAS9416KBT000.00%
203.133.65.0/24TaiwanAS9416KBT000.00%
203.133.66.0/24TaiwanAS9416KBT000.00%
203.133.67.0/24TaiwanAS9416KBT000.00%
203.133.68.0/24TaiwanAS9416KBT000.00%
203.133.69.0/24TaiwanAS9416KBT000.00%
203.133.70.0/24TaiwanAS9416KBT000.00%
203.133.71.0/24TaiwanAS9416KBT000.00%
203.133.72.0/24TaiwanAS9416KBT051.95%
203.133.73.0/24TaiwanAS9416KBT000.00%
203.133.74.0/24TaiwanAS9416KBT000.00%
203.133.75.0/24TaiwanAS9416KBT000.00%
203.133.76.0/24TaiwanAS9416KBT000.00%
203.133.77.0/24TaiwanAS9416KBT000.00%
203.133.78.0/24TaiwanAS9416KBT000.00%
203.133.79.0/24TaiwanAS9416KBT000.00%
203.133.80.0/24TaiwanAS9416KBT000.00%
203.133.81.0/24TaiwanAS9416KBT000.00%
203.133.82.0/24TaiwanAS9416KBT000.00%
203.133.83.0/24TaiwanAS9416KBT000.00%
203.133.84.0/24TaiwanAS9416KBT000.00%
203.133.85.0/24TaiwanAS9416KBT000.00%
203.133.86.0/24TaiwanAS9416KBT000.00%
203.133.87.0/24TaiwanAS9416KBT000.00%
203.133.88.0/24TaiwanAS9416KBT000.00%
203.133.89.0/24TaiwanAS9416KBT000.00%
203.133.90.0/24TaiwanAS9416KBT000.00%
203.133.91.0/24TaiwanAS9416KBT000.00%
203.133.92.0/24TaiwanAS9416KBT000.00%
203.133.93.0/24TaiwanAS9416KBT000.00%
203.133.94.0/24TaiwanAS9416KBT000.00%
203.133.95.0/24TaiwanAS9416KBT000.00%
203.133.96.0/24TaiwanAS9416KBT000.00%
203.133.97.0/24TaiwanAS9416KBT000.00%
203.133.98.0/24TaiwanAS9416KBT000.00%
203.133.99.0/24TaiwanAS9416KBT000.00%
203.133.100.0/24TaiwanAS9416KBT000.00%
203.133.101.0/24TaiwanAS9416KBT000.00%
203.133.102.0/24TaiwanAS9416KBT000.00%
203.133.103.0/24TaiwanAS9416KBT000.00%
203.133.104.0/24TaiwanAS9416KBT000.00%
203.133.105.0/24TaiwanAS9416KBT000.00%
203.133.106.0/24TaiwanAS9416KBT000.00%
203.133.107.0/24TaiwanAS9416KBT000.00%
203.133.108.0/24TaiwanAS9416KBT000.00%
203.133.109.0/24TaiwanAS9416KBT000.00%
203.133.110.0/24TaiwanAS9416KBT000.00%
203.133.111.0/24TaiwanAS9416KBT000.00%
203.133.112.0/24TaiwanAS9416KBT000.00%
203.133.113.0/24TaiwanAS9416KBT000.00%
203.133.114.0/24TaiwanAS9416KBT000.00%
203.133.115.0/24TaiwanAS9416KBT000.00%
203.133.116.0/24TaiwanAS9416KBT000.00%
203.133.117.0/24TaiwanAS9416KBT000.00%
203.133.118.0/24TaiwanAS9416KBT000.00%
203.133.119.0/24TaiwanAS9416KBT000.00%
203.133.120.0/24TaiwanAS9416KBT000.00%
203.133.121.0/24TaiwanAS9416KBT000.00%
203.133.122.0/24TaiwanAS9416KBT000.00%
203.133.123.0/24TaiwanAS9416KBT000.00%
203.133.124.0/24TaiwanAS9416KBT000.00%
203.133.125.0/24TaiwanAS9416KBT000.00%
203.133.126.0/24TaiwanAS9416KBT000.00%
203.133.127.0/24TaiwanAS9416KBT000.00%
203.133.128.0/24JapanAS9351ZTV CO.,LTD100.39%
203.133.129.0/24JapanAS9351ZTV CO.,LTD100.39%
203.133.130.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.131.0/24JapanAS9351ZTV CO.,LTD301.17%
203.133.132.0/24JapanAS9351ZTV CO.,LTD501.95%
203.133.133.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.134.0/24JapanAS9351ZTV CO.,LTD401.56%
203.133.135.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.136.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.137.0/24JapanAS9351ZTV CO.,LTD100.39%
203.133.138.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.139.0/24JapanAS9351ZTV CO.,LTD401.56%
203.133.140.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.141.0/24JapanAS9351ZTV CO.,LTD000.00%
203.133.142.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.143.0/24JapanAS9351ZTV CO.,LTD702.73%
203.133.144.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.145.0/24JapanAS9351ZTV CO.,LTD501.95%
203.133.146.0/24JapanAS9351ZTV CO.,LTD602.34%
203.133.147.0/24JapanAS9351ZTV CO.,LTD301.17%
203.133.148.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.149.0/24JapanAS9351ZTV CO.,LTD501.95%
203.133.150.0/24JapanAS9351ZTV CO.,LTD903.52%
203.133.151.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.152.0/24JapanAS9351ZTV CO.,LTD301.17%
203.133.153.0/24JapanAS9351ZTV CO.,LTD000.00%
203.133.154.0/24JapanAS9351ZTV CO.,LTD803.13%
203.133.155.0/24JapanAS9351ZTV CO.,LTD1249.77%
203.133.156.0/24JapanAS9351ZTV CO.,LTD100.39%
203.133.157.0/24JapanAS9351ZTV CO.,LTD200.78%
203.133.158.0/24JapanAS9351ZTV CO.,LTD301.17%
203.133.159.0/24JapanAS9351ZTV CO.,LTD401.56%
203.133.160.0/24South Korea—000.00%
203.133.161.0/24South KoreaAS10178Kakaopay Corp000.00%
203.133.162.0/24South Korea—000.00%
203.133.163.0/24South Korea—000.00%
203.133.164.0/24South Korea—000.00%
203.133.165.0/24South Korea—000.00%
203.133.166.0/24South Korea—000.00%
203.133.167.0/24South Korea—000.00%
203.133.168.0/24South Korea—000.00%
203.133.169.0/24South Korea—000.00%
203.133.170.0/24South Korea—000.00%
203.133.171.0/24South Korea—000.00%
203.133.172.0/24South Korea—000.00%
203.133.173.0/24South Korea—000.00%
203.133.174.0/24South Korea—000.00%
203.133.175.0/24South Korea—000.00%
203.133.176.0/24South Korea—000.00%
203.133.177.0/24South Korea—000.00%
203.133.178.0/24South Korea—000.00%
203.133.179.0/24South Korea—000.00%
203.133.180.0/24South Korea—000.00%
203.133.181.0/24South Korea—000.00%
203.133.182.0/24South Korea—000.00%
203.133.183.0/24South Korea—000.00%
203.133.184.0/24South KoreaAS18160Kakao Corp020.78%
203.133.185.0/24South KoreaAS18160Kakao Corp000.00%
203.133.186.0/24South KoreaAS18160Kakao Corp010.39%
203.133.187.0/24South KoreaAS18160Kakao Corp000.00%
203.133.188.0/24South KoreaAS18160Kakao Corp000.00%
203.133.189.0/24South KoreaAS18160Kakao Corp000.00%
203.133.190.0/24South KoreaAS18160Kakao Corp020.78%
203.133.191.0/24South KoreaAS18160Kakao Corp020.78%
203.133.192.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.193.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.194.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.195.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.196.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.401.56%
203.133.197.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.198.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.199.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.200.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.201.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.202.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.203.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.204.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.205.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.206.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.207.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.208.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.209.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.301.17%
203.133.210.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.211.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.212.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.213.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.214.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.215.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.216.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.217.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.218.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.219.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.220.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.221.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.222.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.223.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.224.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.225.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.226.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.301.17%
203.133.227.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.100.39%
203.133.228.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.200.78%
203.133.229.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.301.17%
203.133.230.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.231.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.232.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.233.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.234.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.0256100.00%
203.133.235.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.2256100.00%
203.133.236.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.237.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.238.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.239.0/24JapanAS7524ITEC HANKYU HANSHIN CO.,LTD.000.00%
203.133.240.0/24JapanAS10003Ogaki Cable Television Co.,Inc.401.56%
203.133.241.0/24JapanAS10003Ogaki Cable Television Co.,Inc.401.56%
203.133.242.0/24JapanAS10003Ogaki Cable Television Co.,Inc.301.17%
203.133.243.0/24JapanAS10003Ogaki Cable Television Co.,Inc.401.56%
203.133.244.0/24JapanAS10003Ogaki Cable Television Co.,Inc.602.34%
203.133.245.0/24JapanAS10003Ogaki Cable Television Co.,Inc.301.17%
203.133.246.0/24JapanAS10003Ogaki Cable Television Co.,Inc.602.34%
203.133.247.0/24JapanAS10003Ogaki Cable Television Co.,Inc.401.56%
203.133.248.0/24AustraliaAS4608APNIC100.39%
203.133.249.0/24AustraliaAS4608APNIC000.00%
203.133.250.0/24Australia—000.00%
203.133.251.0/24Australia—000.00%
203.133.252.0/24Pakistan—000.00%
203.133.253.0/24Pakistan—000.00%
203.133.254.0/24Pakistan—000.00%
203.133.255.0/24Pakistan—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.