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65,536 routable9 ASes
/16 subnet

121.0.0.0/16

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
65,024
geolocated
7
countries
9
announcing ASes
19
announced prefixes
50
anonymous addresses

Where it is

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

  1. South Korea49,152 · 75.59%
  2. China6,144 · 9.45%
  3. Japan6,144 · 9.45%
  4. Australia2,048 · 3.15%
  5. India512 · 0.79%
  6. Nepal512 · 0.79%
  7. Philippines512 · 0.79%

Who announces it

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

  1. AS38661abcle32,768 · 50.00%
  2. AS18328Dotname Korea Corp15,872 · 24.22%
  3. AS9595NTT-ME Corporation6,144 · 9.38%
  4. AS37963Hangzhou Alibaba Advertising Co.,Ltd.4,096 · 6.25%
  5. AS7594On Q2,048 · 3.13%
  6. AS135120PROJECT ELIV512 · 0.78%
  7. AS154236JustConnect Installation Solutions Inc.512 · 0.78%
  8. AS154237Swift Technology Pvt. Ltd.512 · 0.78%
  9. AS154241Central Processing cell (CPC) - Tax deduction at source (TDS)512 · 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.

19 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
121.0.0.0/21AS7594On QAustraliavalid172026-10-02
121.0.16.0/20AS37963Hangzhou Alibaba Advertising Co.,Ltd.Chinavalid172026-10-02
121.0.16.0/21AS37963Hangzhou Alibaba Advertising Co.,Ltd.Chinavalid172026-10-02
121.0.24.0/22AS37963Hangzhou Alibaba Advertising Co.,Ltd.Chinavalid172026-10-02
121.0.28.0/22AS37963Hangzhou Alibaba Advertising Co.,Ltd.Chinavalid172026-10-02
121.0.32.0/20AS9595NTT-ME CorporationJapannot found172026-10-02
121.0.48.0/21AS9595NTT-ME CorporationJapannot found172026-10-02
121.0.56.0/24AS154241Central Processing cell (CPC) - Tax deduction at source (TDS)Indiavalid172026-10-02
121.0.57.0/24AS154241Central Processing cell (CPC) - Tax deduction at source (TDS)Indiavalid172026-10-02
121.0.58.0/23AS154236JustConnect Installation Solutions Inc.Philippinesvalid182026-10-03
121.0.58.0/24AS154236JustConnect Installation Solutions Inc.Philippinesvalid182026-10-03
121.0.59.0/24AS154236JustConnect Installation Solutions Inc.Philippinesvalid182026-10-03
121.0.60.0/23AS154237Swift Technology Pvt. Ltd.Nepalvalid172026-10-02
121.0.64.0/18AS18328Dotname Korea CorpSouth Koreanot found172026-10-02
121.0.96.0/24AS18328Dotname Korea CorpSouth Koreavalid172026-10-02
121.0.97.0/24AS18328Dotname Korea CorpSouth Koreavalid172026-10-02
121.0.111.0/24AS135120PROJECT ELIVSouth Koreavalid172026-10-02
121.0.127.0/24AS135120PROJECT ELIVSouth Koreavalid172026-10-02
121.0.128.0/17AS38661abcleSouth Koreavalid172026-10-02

Every /24 inside it

121.0.0.0/24AustraliaAS7594On Q200.78%
121.0.1.0/24AustraliaAS7594On Q602.34%
121.0.2.0/24AustraliaAS7594On Q4256100.00%
121.0.3.0/24AustraliaAS7594On Q000.00%
121.0.4.0/24AustraliaAS7594On Q100.39%
121.0.5.0/24AustraliaAS7594On Q000.00%
121.0.6.0/24AustraliaAS7594On Q000.00%
121.0.7.0/24AustraliaAS7594On Q0256100.00%
121.0.8.0/24China—000.00%
121.0.9.0/24China—000.00%
121.0.10.0/24China—000.00%
121.0.11.0/24China—000.00%
121.0.12.0/24China—000.00%
121.0.13.0/24China—000.00%
121.0.14.0/24China—000.00%
121.0.15.0/24China—000.00%
121.0.16.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.17.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.18.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.19.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.20.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.21.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.22.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.23.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.24.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.25.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.26.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.27.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.28.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.29.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.30.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.31.0/24ChinaAS37963Hangzhou Alibaba Advertising Co.,Ltd.0256100.00%
121.0.32.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.33.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.34.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.35.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.36.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.37.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.38.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.39.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.40.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.41.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.42.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.43.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.44.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.45.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.46.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.47.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.48.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.49.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.50.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.51.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.52.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.53.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.54.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.55.0/24JapanAS9595NTT-ME Corporation000.00%
121.0.56.0/24IndiaAS154241Central Processing cell (CPC) - Tax deduction at source (TDS)000.00%
121.0.57.0/24IndiaAS154241Central Processing cell (CPC) - Tax deduction at source (TDS)000.00%
121.0.58.0/24PhilippinesAS154236JustConnect Installation Solutions Inc.501.95%
121.0.59.0/24PhilippinesAS154236JustConnect Installation Solutions Inc.803.13%
121.0.60.0/24NepalAS154237Swift Technology Pvt. Ltd.000.00%
121.0.61.0/24NepalAS154237Swift Technology Pvt. Ltd.000.00%
121.0.62.0/24——000.00%
121.0.63.0/24——000.00%
121.0.64.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.65.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.66.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.67.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.68.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.69.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.70.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.71.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.72.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.73.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.74.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.75.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.76.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.77.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.78.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.79.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.80.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.81.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.82.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.83.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.84.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.85.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.86.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.87.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.88.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.89.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.90.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.91.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.92.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.93.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.94.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.95.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.96.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.97.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.98.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.99.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.100.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.101.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.102.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.103.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.104.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.105.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.106.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.107.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.108.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.109.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.110.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.111.0/24South KoreaAS135120PROJECT ELIV000.00%
121.0.112.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.113.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.114.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.115.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.116.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.117.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.118.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.119.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.120.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.121.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.122.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.123.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.124.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.125.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.126.0/24South KoreaAS18328Dotname Korea Corp000.00%
121.0.127.0/24South KoreaAS135120PROJECT ELIV000.00%
121.0.128.0/24South KoreaAS38661abcle000.00%
121.0.129.0/24South KoreaAS38661abcle000.00%
121.0.130.0/24South KoreaAS38661abcle000.00%
121.0.131.0/24South KoreaAS38661abcle000.00%
121.0.132.0/24South KoreaAS38661abcle000.00%
121.0.133.0/24South KoreaAS38661abcle000.00%
121.0.134.0/24South KoreaAS38661abcle000.00%
121.0.135.0/24South KoreaAS38661abcle000.00%
121.0.136.0/24South KoreaAS38661abcle401.56%
121.0.137.0/24South KoreaAS38661abcle000.00%
121.0.138.0/24South KoreaAS38661abcle000.00%
121.0.139.0/24South KoreaAS38661abcle000.00%
121.0.140.0/24South KoreaAS38661abcle3256100.00%
121.0.141.0/24South KoreaAS38661abcle9256100.00%
121.0.142.0/24South KoreaAS38661abcle8256100.00%
121.0.143.0/24South KoreaAS38661abcle000.00%
121.0.144.0/24South KoreaAS38661abcle000.00%
121.0.145.0/24South KoreaAS38661abcle000.00%
121.0.146.0/24South KoreaAS38661abcle000.00%
121.0.147.0/24South KoreaAS38661abcle000.00%
121.0.148.0/24South KoreaAS38661abcle000.00%
121.0.149.0/24South KoreaAS38661abcle000.00%
121.0.150.0/24South KoreaAS38661abcle000.00%
121.0.151.0/24South KoreaAS38661abcle000.00%
121.0.152.0/24South KoreaAS38661abcle000.00%
121.0.153.0/24South KoreaAS38661abcle000.00%
121.0.154.0/24South KoreaAS38661abcle000.00%
121.0.155.0/24South KoreaAS38661abcle000.00%
121.0.156.0/24South KoreaAS38661abcle000.00%
121.0.157.0/24South KoreaAS38661abcle000.00%
121.0.158.0/24South KoreaAS38661abcle000.00%
121.0.159.0/24South KoreaAS38661abcle000.00%
121.0.160.0/24South KoreaAS38661abcle000.00%
121.0.161.0/24South KoreaAS38661abcle000.00%
121.0.162.0/24South KoreaAS38661abcle000.00%
121.0.163.0/24South KoreaAS38661abcle000.00%
121.0.164.0/24South KoreaAS38661abcle000.00%
121.0.165.0/24South KoreaAS38661abcle000.00%
121.0.166.0/24South KoreaAS38661abcle000.00%
121.0.167.0/24South KoreaAS38661abcle000.00%
121.0.168.0/24South KoreaAS38661abcle000.00%
121.0.169.0/24South KoreaAS38661abcle000.00%
121.0.170.0/24South KoreaAS38661abcle000.00%
121.0.171.0/24South KoreaAS38661abcle000.00%
121.0.172.0/24South KoreaAS38661abcle000.00%
121.0.173.0/24South KoreaAS38661abcle000.00%
121.0.174.0/24South KoreaAS38661abcle000.00%
121.0.175.0/24South KoreaAS38661abcle000.00%
121.0.176.0/24South KoreaAS38661abcle000.00%
121.0.177.0/24South KoreaAS38661abcle000.00%
121.0.178.0/24South KoreaAS38661abcle000.00%
121.0.179.0/24South KoreaAS38661abcle000.00%
121.0.180.0/24South KoreaAS38661abcle000.00%
121.0.181.0/24South KoreaAS38661abcle000.00%
121.0.182.0/24South KoreaAS38661abcle000.00%
121.0.183.0/24South KoreaAS38661abcle000.00%
121.0.184.0/24South KoreaAS38661abcle000.00%
121.0.185.0/24South KoreaAS38661abcle000.00%
121.0.186.0/24South KoreaAS38661abcle000.00%
121.0.187.0/24South KoreaAS38661abcle000.00%
121.0.188.0/24South KoreaAS38661abcle000.00%
121.0.189.0/24South KoreaAS38661abcle000.00%
121.0.190.0/24South KoreaAS38661abcle000.00%
121.0.191.0/24South KoreaAS38661abcle000.00%
121.0.192.0/24South KoreaAS38661abcle000.00%
121.0.193.0/24South KoreaAS38661abcle000.00%
121.0.194.0/24South KoreaAS38661abcle000.00%
121.0.195.0/24South KoreaAS38661abcle000.00%
121.0.196.0/24South KoreaAS38661abcle000.00%
121.0.197.0/24South KoreaAS38661abcle000.00%
121.0.198.0/24South KoreaAS38661abcle000.00%
121.0.199.0/24South KoreaAS38661abcle000.00%
121.0.200.0/24South KoreaAS38661abcle000.00%
121.0.201.0/24South KoreaAS38661abcle000.00%
121.0.202.0/24South KoreaAS38661abcle000.00%
121.0.203.0/24South KoreaAS38661abcle000.00%
121.0.204.0/24South KoreaAS38661abcle000.00%
121.0.205.0/24South KoreaAS38661abcle000.00%
121.0.206.0/24South KoreaAS38661abcle000.00%
121.0.207.0/24South KoreaAS38661abcle000.00%
121.0.208.0/24South KoreaAS38661abcle000.00%
121.0.209.0/24South KoreaAS38661abcle000.00%
121.0.210.0/24South KoreaAS38661abcle000.00%
121.0.211.0/24South KoreaAS38661abcle000.00%
121.0.212.0/24South KoreaAS38661abcle000.00%
121.0.213.0/24South KoreaAS38661abcle000.00%
121.0.214.0/24South KoreaAS38661abcle000.00%
121.0.215.0/24South KoreaAS38661abcle000.00%
121.0.216.0/24South KoreaAS38661abcle000.00%
121.0.217.0/24South KoreaAS38661abcle000.00%
121.0.218.0/24South KoreaAS38661abcle000.00%
121.0.219.0/24South KoreaAS38661abcle000.00%
121.0.220.0/24South KoreaAS38661abcle000.00%
121.0.221.0/24South KoreaAS38661abcle000.00%
121.0.222.0/24South KoreaAS38661abcle000.00%
121.0.223.0/24South KoreaAS38661abcle000.00%
121.0.224.0/24South KoreaAS38661abcle000.00%
121.0.225.0/24South KoreaAS38661abcle000.00%
121.0.226.0/24South KoreaAS38661abcle000.00%
121.0.227.0/24South KoreaAS38661abcle000.00%
121.0.228.0/24South KoreaAS38661abcle000.00%
121.0.229.0/24South KoreaAS38661abcle000.00%
121.0.230.0/24South KoreaAS38661abcle000.00%
121.0.231.0/24South KoreaAS38661abcle000.00%
121.0.232.0/24South KoreaAS38661abcle000.00%
121.0.233.0/24South KoreaAS38661abcle000.00%
121.0.234.0/24South KoreaAS38661abcle000.00%
121.0.235.0/24South KoreaAS38661abcle000.00%
121.0.236.0/24South KoreaAS38661abcle000.00%
121.0.237.0/24South KoreaAS38661abcle000.00%
121.0.238.0/24South KoreaAS38661abcle000.00%
121.0.239.0/24South KoreaAS38661abcle000.00%
121.0.240.0/24South KoreaAS38661abcle000.00%
121.0.241.0/24South KoreaAS38661abcle000.00%
121.0.242.0/24South KoreaAS38661abcle000.00%
121.0.243.0/24South KoreaAS38661abcle000.00%
121.0.244.0/24South KoreaAS38661abcle000.00%
121.0.245.0/24South KoreaAS38661abcle000.00%
121.0.246.0/24South KoreaAS38661abcle000.00%
121.0.247.0/24South KoreaAS38661abcle000.00%
121.0.248.0/24South KoreaAS38661abcle000.00%
121.0.249.0/24South KoreaAS38661abcle000.00%
121.0.250.0/24South KoreaAS38661abcle000.00%
121.0.251.0/24South KoreaAS38661abcle000.00%
121.0.252.0/24South KoreaAS38661abcle000.00%
121.0.253.0/24South KoreaAS38661abcle000.00%
121.0.254.0/24South KoreaAS38661abcle000.00%
121.0.255.0/24South KoreaAS38661abcle000.00%
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