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
92
Pingable IPs
6,816

Top Countries

Top BGP Prefixes

Top ASNs

  • AS2519 ARTERIA Networks Corporation
    75%
  • AS59125 FAMILY NET JAPAN INCORPORATED
    12.5%
  • 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%1120
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%111
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%112
1.21.124.0/24 Japan 100%110
1.21.125.0/24 Japan 100%116
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%115
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

6,816 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
1.21.35.171AS2519 ARTERIA Networks Corporation3.30ms from Osaka,  JP
1.21.19.185AS2519 ARTERIA Networks Corporation3.20ms from Osaka,  JP
1.21.10.17AS2519 ARTERIA Networks Corporation3.08ms from Tokyo,  JP
1.21.20.173AS2519 ARTERIA Networks Corporation3.20ms from Osaka,  JP
1.21.0.58AS2519 ARTERIA Networks Corporation0.84ms from Tokyo,  JP
1.21.58.26AS2519 ARTERIA Networks Corporation0.44ms from Tokyo,  JP
1.21.23.101AS2519 ARTERIA Networks Corporation3.17ms from Osaka,  JP
1.21.44.242AS2519 ARTERIA Networks Corporation0.75ms from Tokyo,  JP
1.21.8.145AS2519 ARTERIA Networks Corporation2.01ms from Osaka,  JP
1.21.59.33AS2519 ARTERIA Networks Corporation0.54ms 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.
23.239.17.64AS63949 Akamai Connected Cloud0.36ms from Atlanta,  US
77.13.140.48AS6805 Telefonica Germany GmbH & Co.OHG5.04ms from Berlin,  DE
147.229.136.176AS197451 Brno University of Technology0.53ms from Brno,  CZ
89.122.62.0AS9050 Orange Romania S.A.0.28ms from Bucharest,  RO
98.222.145.208AS7922 Comcast Cable Communications, LLC7.41ms from Chicago,  US
129.13.80.176AS34878 Karlsruhe Institute of Technology3.32ms from Frankfurt am Main,  DE
42.87.190.144AS4837 CHINA UNICOM China169 Backbone11.33ms from Liaoyang,  CN
167.89.100.112AS11377 SendGrid, Inc.6.31ms from Los Angeles,  US
217.61.77.208AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL7.39ms from Madrid,  ES
123.1.79.160AS18126 Chubu Telecommunications Company, Inc.11.58ms from Osaka,  JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -m5 1.21.1.7
traceroute to 1.21.1.7 (1.21.1.7): 5 hops max, 52 byte packets
1 [AS15169] 142.250.208.159 205.02 ms
2 [AS2519] 163.139.78.45 243.204 ms
3 *
4 *
5 *
Measurement taken from  IPinfo ProbeNet in Santiago, CL
On