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  1. All IP Ranges
  2. 1.0.0.0/8
  3. 1.21.0.0/16

1.21.0.0/16 IP Range

Summary

ASNs
2
Countries
2
BGP Prefixes8
Routers
81
Pingable IPs
7,016

Top Countries

Top BGP Prefixes

Top ASNs

  • AS2519 ARTERIA Networks Corporation
    75%
  • 12.5%
  • AS59125 FAMILY NET JAPAN INCORPORATED
    12.5%
1.21.0.0/24 Japan 100%110
1.21.1.0/24 Japan 100%110
1.21.2.0/24 Japan 100%110
1.21.3.0/24 Japan 100%110
1.21.4.0/24 Japan 100%110
1.21.5.0/24 Japan 100%110
1.21.6.0/24 Japan 100%110
1.21.7.0/24 Japan 100%110
1.21.8.0/24 Japan 100%110
1.21.9.0/24 Japan 100%110
1.21.10.0/24 Japan 100%112
1.21.11.0/24 Japan 100%110
1.21.12.0/24 Japan 100%110
1.21.13.0/24 Japan 100%110
1.21.14.0/24 Japan 100%110
1.21.15.0/24 Japan 100%111
1.21.16.0/24 Japan 100%110
1.21.17.0/24 Japan 100%110
1.21.18.0/24 Japan 100%110
1.21.19.0/24 Japan 100%110
1.21.20.0/24 Japan 100%110
1.21.21.0/24 Japan 100%110
1.21.22.0/24 Japan 100%110
1.21.23.0/24 Japan 100%110
1.21.24.0/24 Japan 100%110
1.21.25.0/24 Japan 100%110
1.21.26.0/24 Japan 100%110
1.21.27.0/24 Japan 100%110
1.21.28.0/24 Japan 100%110
1.21.29.0/24 Japan 100%110
1.21.30.0/24 Japan 100%110
1.21.31.0/24 Japan 100%110
1.21.32.0/24 Japan 100%110
1.21.33.0/24 Japan 100%110
1.21.34.0/24 Japan 100%110
1.21.35.0/24 Japan 100%110
1.21.36.0/24 Japan 100%110
1.21.37.0/24 Japan 100%110
1.21.38.0/24 Japan 100%110
1.21.39.0/24 Japan 100%110
1.21.40.0/24 Japan 100%110
1.21.41.0/24 Japan 100%110
1.21.42.0/24 Japan 100%110
1.21.43.0/24 Japan 100%110
1.21.44.0/24 Japan 100%1138
1.21.45.0/24 Japan 100%1113
1.21.46.0/24 Japan 100%1123
1.21.47.0/24 Japan 100%114
1.21.48.0/24 Japan 100%110
1.21.49.0/24 Japan 100%110
1.21.50.0/24 Japan 100%110
1.21.51.0/24 Japan 100%110
1.21.52.0/24 Japan 100%110
1.21.53.0/24 Japan 100%110
1.21.54.0/24 Japan 100%110
1.21.55.0/24 Japan 100%110
1.21.56.0/24 Japan 100%110
1.21.57.0/24 Japan 100%110
1.21.58.0/24 Japan 100%110
1.21.59.0/24 Japan 100%110
1.21.60.0/24 Japan 100%110
1.21.61.0/24 Japan 100%110
1.21.62.0/24 Japan 100%110
1.21.63.0/24 Japan 100%110
1.21.64.0/24 Japan 100%110
1.21.65.0/24 Japan 100%110
1.21.66.0/24 Japan 100%110
1.21.67.0/24 Japan 100%110
1.21.68.0/24 Japan 100%110
1.21.69.0/24 Japan 100%110
1.21.70.0/24 Japan 100%110
1.21.71.0/24 Japan 100%110
1.21.72.0/24 Japan 100%110
1.21.73.0/24 Japan 100%110
1.21.74.0/24 Japan 100%110
1.21.75.0/24 Japan 100%110
1.21.76.0/24 Japan 100%110
1.21.77.0/24 Japan 100%110
1.21.78.0/24 Japan 100%110
1.21.79.0/24 Japan 100%110
1.21.80.0/24 Japan 100%110
1.21.81.0/24 Japan 100%110
1.21.82.0/24 Japan 100%110
1.21.83.0/24 Japan 100%110
1.21.84.0/24 Japan 100%110
1.21.85.0/24 Japan 100%110
1.21.86.0/24 Japan 100%110
1.21.87.0/24 Japan 100%110
1.21.88.0/24 Japan 100%110
1.21.89.0/24 Japan 100%110
1.21.90.0/24 Japan 100%110
1.21.91.0/24 Japan 100%110
1.21.92.0/24 Japan 100%110
1.21.93.0/24 Japan 100%110
1.21.94.0/24 Japan 100%110
1.21.95.0/24 Japan 100%110
1.21.96.0/24 Japan 100%110
1.21.97.0/24 Japan 100%110
1.21.98.0/24 Japan 100%110
1.21.99.0/24 Japan 100%110
1.21.100.0/24 Japan 100%110
1.21.101.0/24 Japan 100%110
1.21.102.0/24 Japan 100%110
1.21.103.0/24 Japan 100%110
1.21.104.0/24 Japan 100%110
1.21.105.0/24 Japan 100%110
1.21.106.0/24 Japan 100%110
1.21.107.0/24 Japan 100%110
1.21.108.0/24 Japan 100%110
1.21.109.0/24 Japan 100%110
1.21.110.0/24 Japan 100%110
1.21.111.0/24 Japan 100%110
1.21.112.0/24 Japan 100%110
1.21.113.0/24 Japan 100%110
1.21.114.0/24 Japan 100%110
1.21.115.0/24 Japan 100%110
1.21.116.0/24 Japan 100%110
1.21.117.0/24 Japan 100%110
1.21.118.0/24 Japan 100%110
1.21.119.0/24 Japan 100%110
1.21.120.0/24 Japan 100%110
1.21.121.0/24 Japan 100%110
1.21.122.0/24 Japan 100%110
1.21.123.0/24 Japan 100%110
1.21.124.0/24 Japan 100%110
1.21.125.0/24 Japan 100%110
1.21.126.0/24 Japan 100%110
1.21.127.0/24 Japan 100%110
1.21.128.0/24 Japan 100%110
1.21.129.0/24 Japan 100%110
1.21.130.0/24 Japan 100%110
1.21.131.0/24 Japan 100%110
1.21.132.0/24 Japan 100%110
1.21.133.0/24 Japan 100%110
1.21.134.0/24 Japan 100%110
1.21.135.0/24 Japan 100%110
1.21.136.0/24 Japan 100%110
1.21.137.0/24 Japan 100%110
1.21.138.0/24 Japan 100%110
1.21.139.0/24 Japan 100%110
1.21.140.0/24 Japan 100%110
1.21.141.0/24 Japan 100%110
1.21.142.0/24 Japan 100%110
1.21.143.0/24 Japan 100%110
1.21.144.0/24 Japan 100%110
1.21.145.0/24 Japan 100%110
1.21.146.0/24 Japan 100%110
1.21.147.0/24 Japan 100%110
1.21.148.0/24 Japan 100%110
1.21.149.0/24 Japan 100%110
1.21.150.0/24 Japan 100%110
1.21.151.0/24 Japan 100%110
1.21.152.0/24 Japan 100%110
1.21.153.0/24 Japan 100%110
1.21.154.0/24 Japan 100%110
1.21.155.0/24 Japan 100%110
1.21.156.0/24 Japan 100%110
1.21.157.0/24 Japan 100%110
1.21.158.0/24 Japan 100%110
1.21.159.0/24 Japan 100%110
1.21.160.0/24 Japan 100%110
1.21.161.0/24 Japan 100%110
1.21.162.0/24 Japan 100%110
1.21.163.0/24 Japan 100%110
1.21.164.0/24 Japan 100%110
1.21.165.0/24 Japan 100%110
1.21.166.0/24 Japan 100%110
1.21.167.0/24 Japan 100%110
1.21.168.0/24 Japan 100%110
1.21.169.0/24 Japan 100%110
1.21.170.0/24 Japan 100%110
1.21.171.0/24 Japan 100%110
1.21.172.0/24 Japan 100%110
1.21.173.0/24 Japan 100%110
1.21.174.0/24 Japan 100%110
1.21.175.0/24 Japan 100%110
1.21.176.0/24 Japan 100%110
1.21.177.0/24 Japan 100%110
1.21.178.0/24 Japan 100%110
1.21.179.0/24 Japan 100%110
1.21.180.0/24 Japan 100%110
1.21.181.0/24 Japan 100%110
1.21.182.0/24 Japan 100%110
1.21.183.0/24 Japan 100%110
1.21.184.0/24 Japan 100%110
1.21.185.0/24 Japan 100%110
1.21.186.0/24 Japan 100%110
1.21.187.0/24 Japan 100%110
1.21.188.0/24 Japan 100%110
1.21.189.0/24 Japan 100%110
1.21.190.0/24 Japan 100%110
1.21.191.0/24 Japan 100%110
1.21.192.0/24 Japan 100%110
1.21.193.0/24 Japan 100%110
1.21.194.0/24 Japan 100%110
1.21.195.0/24 Japan 100%110
1.21.196.0/24 Japan 100%110
1.21.197.0/24 Japan 100%110
1.21.198.0/24 Japan 100%110
1.21.199.0/24 Japan 100%110
1.21.200.0/24 Japan 100%110
1.21.201.0/24 Japan 100%110
1.21.202.0/24 Japan 100%110
1.21.203.0/24 Japan 100%110
1.21.204.0/24 Japan 100%110
1.21.205.0/24 Japan 100%110
1.21.206.0/24 Japan 100%110
1.21.207.0/24 Japan 100%110
1.21.208.0/24 Japan 100%110
1.21.209.0/24 Japan 100%110
1.21.210.0/24 Japan 100%110
1.21.211.0/24 Japan 100%110
1.21.212.0/24 Japan 100%110
1.21.213.0/24 Japan 100%110
1.21.214.0/24 Japan 100%110
1.21.215.0/24 Japan 100%110
1.21.216.0/24 Japan 100%110
1.21.217.0/24 Japan 100%110
1.21.218.0/24 Japan 100%110
1.21.219.0/24 Japan 100%110
1.21.220.0/24 Japan 100%110
1.21.221.0/24 Japan 100%110
1.21.222.0/24 Japan 100%110
1.21.223.0/24 Japan 100%110
1.21.224.0/24 Singapore 100%100
1.21.225.0/24 Singapore 100%100
1.21.226.0/24 Singapore 100%100
1.21.227.0/24 Singapore 100%100
1.21.228.0/24 Singapore 100%100
1.21.229.0/24 Singapore 100%100
1.21.230.0/24 Singapore 100%100
1.21.231.0/24 Singapore 100%100
1.21.232.0/24 Singapore 100%100
1.21.233.0/24 Singapore 100%100
1.21.234.0/24 Singapore 100%100
1.21.235.0/24 Singapore 100%100
1.21.236.0/24 Singapore 100%100
1.21.237.0/24 Singapore 100%100
1.21.238.0/24 Singapore 100%100
1.21.239.0/24 Singapore 100%100
1.21.240.0/24 Singapore 100%100
1.21.241.0/24 Singapore 100%100
1.21.242.0/24 Singapore 100%100
1.21.243.0/24 Singapore 100%100
1.21.244.0/24 Singapore 100%100
1.21.245.0/24 Singapore 100%100
1.21.246.0/24 Singapore 100%100
1.21.247.0/24 Singapore 100%100
1.21.248.0/24 Singapore 100%100
1.21.249.0/24 Singapore 100%100
1.21.250.0/24 Singapore 100%100
1.21.251.0/24 Singapore 100%100
1.21.252.0/24 Singapore 100%100
1.21.253.0/24 Singapore 100%100
1.21.254.0/24 Singapore 100%100
1.21.255.0/24 Singapore 100%100

Pingable IPs

7,016 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
1.21.8.151AS2519 ARTERIA Networks Corporation2.27ms from Osaka,  JP
1.21.35.171AS2519 ARTERIA Networks Corporation3.76ms from Osaka,  JP
1.21.9.55AS2519 ARTERIA Networks Corporation2.22ms from Osaka,  JP
1.21.5.95AS2519 ARTERIA Networks Corporation1.73ms from Osaka,  JP
1.21.42.90AS2519 ARTERIA Networks Corporation19.78ms from Tokyo,  JP
1.21.45.149AS2519 ARTERIA Networks Corporation0.57ms from Tokyo,  JP
1.21.44.94AS2519 ARTERIA Networks Corporation0.79ms from Tokyo,  JP
1.21.12.136AS2519 ARTERIA Networks Corporation3.37ms from Osaka,  JP
1.21.40.226AS2519 ARTERIA Networks Corporation34.28ms from Tokyo,  JP
1.21.17.96AS2519 ARTERIA Networks Corporation3.11ms from Osaka,  JP

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
136.228.194.240AS396253 iboss,inc0.26ms from Boston,  US
186.39.138.80AS22927 Telefonica de Argentina2.83ms from Buenos Aires,  AR
122.178.186.112AS24560 Bharti Airtel Ltd., Telemedia Services9.95ms from Chennai,  IN
40.122.115.16AS8075 Microsoft Corporation0.36ms from Des Moines,  US
151.67.50.160AS1267 WIND TRE S.P.A.8.45ms from Milan,  IT
92.241.21.64AS61237 SigmaTV LLC11.07ms from Moscow,  RU
114.227.55.112AS4134 CHINANET-BACKBONE5.37ms from Nanjing,  CN
114.95.58.96AS4812 China Telecom (Group)10.83ms from Shanghai,  CN
153.142.169.64AS4713 NTT DOCOMO BUSINESS,Inc.2.55ms from Tokyo,  JP
106.42.219.16AS4134 CHINANET-BACKBONE11.64ms from Zhengzhou,  CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -m4 1.21.135.44
traceroute to 1.21.135.44 (1.21.135.44): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from  IPinfo ProbeNet in Amsterdam, NL
On