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65,536 routable2 ASes
/16 subnet

1.21.0.0/16

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
2
announcing ASes
8
announced prefixes
3,510
anonymous addresses

Where it is

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

  1. Japan57,344 · 87.50%
  2. Singapore8,192 · 12.50%

Who announces it

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

  1. AS2519ARTERIA Networks Corporation49,152 · 75.00%
  2. AS59125FAMILY NET JAPAN INCORPORATED8,192 · 12.50%

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.

8 prefixes
PREFIXORIGINCOUNTRYRPKIPEERSFIRST SEEN
1.21.0.0/18AS2519ARTERIA Networks CorporationJapanvalid172026-10-02
1.21.64.0/19AS2519ARTERIA Networks CorporationJapanvalid172026-10-02
1.21.96.0/20AS59125FAMILY NET JAPAN INCORPORATEDJapanvalid172026-10-02
1.21.112.0/20AS2519ARTERIA Networks CorporationJapanvalid172026-10-02
1.21.128.0/20AS59125FAMILY NET JAPAN INCORPORATEDJapanvalid172026-10-02
1.21.144.0/20AS2519ARTERIA Networks CorporationJapanvalid172026-10-02
1.21.160.0/19AS2519ARTERIA Networks CorporationJapanvalid172026-10-02
1.21.192.0/19AS2519ARTERIA Networks CorporationJapanvalid172026-10-02

Every /24 inside it

1.21.0.0/24JapanAS2519ARTERIA Networks Corporation75256100.00%
1.21.1.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.2.0/24JapanAS2519ARTERIA Networks Corporation200.78%
1.21.3.0/24JapanAS2519ARTERIA Networks Corporation1706.64%
1.21.4.0/24JapanAS2519ARTERIA Networks Corporation100.39%
1.21.5.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.6.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.7.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.8.0/24JapanAS2519ARTERIA Networks Corporation100.39%
1.21.9.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.10.0/24JapanAS2519ARTERIA Networks Corporation4256100.00%
1.21.11.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.12.0/24JapanAS2519ARTERIA Networks Corporation62024.22%
1.21.13.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.14.0/24JapanAS2519ARTERIA Networks Corporation74256100.00%
1.21.15.0/24JapanAS2519ARTERIA Networks Corporation100.39%
1.21.16.0/24JapanAS2519ARTERIA Networks Corporation64256100.00%
1.21.17.0/24JapanAS2519ARTERIA Networks Corporation66025.78%
1.21.18.0/24JapanAS2519ARTERIA Networks Corporation41256100.00%
1.21.19.0/24JapanAS2519ARTERIA Networks Corporation62024.22%
1.21.20.0/24JapanAS2519ARTERIA Networks Corporation61256100.00%
1.21.21.0/24JapanAS2519ARTERIA Networks Corporation46017.97%
1.21.22.0/24JapanAS2519ARTERIA Networks Corporation65025.39%
1.21.23.0/24JapanAS2519ARTERIA Networks Corporation51256100.00%
1.21.24.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.25.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.26.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.27.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.28.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.29.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.30.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.31.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.32.0/24JapanAS2519ARTERIA Networks Corporation48018.75%
1.21.33.0/24JapanAS2519ARTERIA Networks Corporation63256100.00%
1.21.34.0/24JapanAS2519ARTERIA Networks Corporation36256100.00%
1.21.35.0/24JapanAS2519ARTERIA Networks Corporation45017.58%
1.21.36.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.37.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.38.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.39.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.40.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.41.0/24JapanAS2519ARTERIA Networks Corporation401.56%
1.21.42.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.43.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.44.0/24JapanAS2519ARTERIA Networks Corporation38256100.00%
1.21.45.0/24JapanAS2519ARTERIA Networks Corporation100.39%
1.21.46.0/24JapanAS2519ARTERIA Networks Corporation903.52%
1.21.47.0/24JapanAS2519ARTERIA Networks Corporation401.56%
1.21.48.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.49.0/24JapanAS2519ARTERIA Networks Corporation96037.50%
1.21.50.0/24JapanAS2519ARTERIA Networks Corporation50019.53%
1.21.51.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.52.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.53.0/24JapanAS2519ARTERIA Networks Corporation100039.06%
1.21.54.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.55.0/24JapanAS2519ARTERIA Networks Corporation2208.59%
1.21.56.0/24JapanAS2519ARTERIA Networks Corporation39256100.00%
1.21.57.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.58.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.59.0/24JapanAS2519ARTERIA Networks Corporation200.78%
1.21.60.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.61.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.62.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.63.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.64.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.65.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.66.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.67.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.68.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.69.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.70.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.71.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.72.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.73.0/24JapanAS2519ARTERIA Networks Corporation46256100.00%
1.21.74.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.75.0/24JapanAS2519ARTERIA Networks Corporation2409.38%
1.21.76.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.77.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.78.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.79.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.80.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.81.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.82.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.83.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.84.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.85.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.86.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.87.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.88.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.89.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.90.0/24JapanAS2519ARTERIA Networks Corporation501.95%
1.21.91.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.92.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.93.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.94.0/24JapanAS2519ARTERIA Networks Corporation27010.55%
1.21.95.0/24JapanAS2519ARTERIA Networks Corporation26010.16%
1.21.96.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED702.73%
1.21.97.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED200.78%
1.21.98.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED301.17%
1.21.99.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED501.95%
1.21.100.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED401.56%
1.21.101.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED200.78%
1.21.102.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED401.56%
1.21.103.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED301.17%
1.21.104.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED602.34%
1.21.105.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.106.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED200.78%
1.21.107.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED401.56%
1.21.108.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED401.56%
1.21.109.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED301.17%
1.21.110.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED401.56%
1.21.111.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED200.78%
1.21.112.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.113.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.114.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.115.0/24JapanAS2519ARTERIA Networks Corporation113044.14%
1.21.116.0/24JapanAS2519ARTERIA Networks Corporation67256100.00%
1.21.117.0/24JapanAS2519ARTERIA Networks Corporation52256100.00%
1.21.118.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.119.0/24JapanAS2519ARTERIA Networks Corporation93036.33%
1.21.120.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.121.0/24JapanAS2519ARTERIA Networks Corporation89034.77%
1.21.122.0/24JapanAS2519ARTERIA Networks Corporation50019.53%
1.21.123.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.124.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.125.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.126.0/24JapanAS2519ARTERIA Networks Corporation45256100.00%
1.21.127.0/24JapanAS2519ARTERIA Networks Corporation46256100.00%
1.21.128.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED100.39%
1.21.129.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.130.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.131.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.132.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.133.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.134.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.135.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.136.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.137.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.138.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.139.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.140.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.141.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.142.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.143.0/24JapanAS59125FAMILY NET JAPAN INCORPORATED000.00%
1.21.144.0/24JapanAS2519ARTERIA Networks Corporation47256100.00%
1.21.145.0/24JapanAS2519ARTERIA Networks Corporation57256100.00%
1.21.146.0/24JapanAS2519ARTERIA Networks Corporation54256100.00%
1.21.147.0/24JapanAS2519ARTERIA Networks Corporation56256100.00%
1.21.148.0/24JapanAS2519ARTERIA Networks Corporation51256100.00%
1.21.149.0/24JapanAS2519ARTERIA Networks Corporation47256100.00%
1.21.150.0/24JapanAS2519ARTERIA Networks Corporation43256100.00%
1.21.151.0/24JapanAS2519ARTERIA Networks Corporation53256100.00%
1.21.152.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.153.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.154.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.155.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.156.0/24JapanAS2519ARTERIA Networks Corporation301.17%
1.21.157.0/24JapanAS2519ARTERIA Networks Corporation100.39%
1.21.158.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.159.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.160.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.161.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.162.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.163.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.164.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.165.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.166.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.167.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.168.0/24JapanAS2519ARTERIA Networks Corporation46256100.00%
1.21.169.0/24JapanAS2519ARTERIA Networks Corporation57256100.00%
1.21.170.0/24JapanAS2519ARTERIA Networks Corporation49256100.00%
1.21.171.0/24JapanAS2519ARTERIA Networks Corporation48256100.00%
1.21.172.0/24JapanAS2519ARTERIA Networks Corporation48256100.00%
1.21.173.0/24JapanAS2519ARTERIA Networks Corporation55256100.00%
1.21.174.0/24JapanAS2519ARTERIA Networks Corporation51256100.00%
1.21.175.0/24JapanAS2519ARTERIA Networks Corporation44256100.00%
1.21.176.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.177.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.178.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.179.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.180.0/24JapanAS2519ARTERIA Networks Corporation70256100.00%
1.21.181.0/24JapanAS2519ARTERIA Networks Corporation39256100.00%
1.21.182.0/24JapanAS2519ARTERIA Networks Corporation56256100.00%
1.21.183.0/24JapanAS2519ARTERIA Networks Corporation45256100.00%
1.21.184.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.185.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.186.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.187.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.188.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.189.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.190.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.191.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.192.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.193.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.194.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.195.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.196.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.197.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.198.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.199.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.200.0/24JapanAS2519ARTERIA Networks Corporation53256100.00%
1.21.201.0/24JapanAS2519ARTERIA Networks Corporation53256100.00%
1.21.202.0/24JapanAS2519ARTERIA Networks Corporation67256100.00%
1.21.203.0/24JapanAS2519ARTERIA Networks Corporation75256100.00%
1.21.204.0/24JapanAS2519ARTERIA Networks Corporation82256100.00%
1.21.205.0/24JapanAS2519ARTERIA Networks Corporation62256100.00%
1.21.206.0/24JapanAS2519ARTERIA Networks Corporation56021.88%
1.21.207.0/24JapanAS2519ARTERIA Networks Corporation53256100.00%
1.21.208.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.209.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.210.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.211.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.212.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.213.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.214.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.215.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.216.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.217.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.218.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.219.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.220.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.221.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.222.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.223.0/24JapanAS2519ARTERIA Networks Corporation000.00%
1.21.224.0/24Singapore—000.00%
1.21.225.0/24Singapore—000.00%
1.21.226.0/24Singapore—000.00%
1.21.227.0/24Singapore—000.00%
1.21.228.0/24Singapore—000.00%
1.21.229.0/24Singapore—000.00%
1.21.230.0/24Singapore—000.00%
1.21.231.0/24Singapore—000.00%
1.21.232.0/24Singapore—000.00%
1.21.233.0/24Singapore—000.00%
1.21.234.0/24Singapore—000.00%
1.21.235.0/24Singapore—000.00%
1.21.236.0/24Singapore—000.00%
1.21.237.0/24Singapore—000.00%
1.21.238.0/24Singapore—000.00%
1.21.239.0/24Singapore—000.00%
1.21.240.0/24Singapore—000.00%
1.21.241.0/24Singapore—000.00%
1.21.242.0/24Singapore—000.00%
1.21.243.0/24Singapore—000.00%
1.21.244.0/24Singapore—000.00%
1.21.245.0/24Singapore—000.00%
1.21.246.0/24Singapore—000.00%
1.21.247.0/24Singapore—000.00%
1.21.248.0/24Singapore—000.00%
1.21.249.0/24Singapore—000.00%
1.21.250.0/24Singapore—000.00%
1.21.251.0/24Singapore—000.00%
1.21.252.0/24Singapore—000.00%
1.21.253.0/24Singapore—000.00%
1.21.254.0/24Singapore—000.00%
1.21.255.0/24Singapore—000.00%
00 · Evaluate

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01 · License

Then license what you use.

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