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  1. All IP Ranges
  2. 203.0.0.0/8
  3. 203.21.0.0/16

203.21.0.0/16 IP Range

Summary

ASNs
33
Countries
14
BGP Prefixes80
Routers
32
Pingable IPs
1,151

Top Countries

Top BGP Prefixes

Top ASNs

  • 63.67%
  • AS1221 Telstra Limited
    7.81%
  • AS133612 Vodafone Australia Pty Ltd
    4.69%
  • AS703 Verizon Business
    3.13%
  • Other
    20.7%
203.21.0.0/24 China 100%100
203.21.1.0/24 China 100%100
203.21.2.0/24 China 100%100
203.21.3.0/24 Australia 100%100
203.21.4.0/24 Serbia 100%114
203.21.5.0/24 Australia 100%110
203.21.6.0/24 Australia 100%100
203.21.7.0/24 India 100%112
203.21.8.0/24 China 100%100
203.21.9.0/24 Australia 100%110
203.21.10.0/24 China 100%100
203.21.11.0/24 Australia 100%100
203.21.12.0/24 Australia 100%110
203.21.13.0/24 Australia 100%100
203.21.14.0/24 Australia 100%100
203.21.15.0/24 Australia 100%100
203.21.16.0/24 Australia 100%100
203.21.17.0/24 Australia 100%100
203.21.18.0/24 China 100%100
203.21.19.0/24 Australia 100%100
203.21.20.0/24 Australia 100%110
203.21.21.0/24 Australia 100%110
203.21.22.0/24 Hong Kong 100%110
203.21.23.0/24 Australia 100%100
203.21.24.0/24 New Zealand 100%110
203.21.25.0/24 New Zealand 100%110
203.21.26.0/24 New Zealand 100%110
203.21.27.0/24 New Zealand 100%110
203.21.28.0/24 New Zealand 100%110
203.21.29.0/24 New Zealand 100%110
203.21.30.0/24 New Zealand 100%110
203.21.31.0/24 New Zealand 100%110
203.21.32.0/24 Australia 100%100
203.21.33.0/24 China 100%100
203.21.34.0/24 China 100%100
203.21.35.0/24 Australia 100%100
203.21.36.0/24 Australia 100%100
203.21.37.0/24 Australia 100%110
203.21.38.0/24 Australia 100%100
203.21.39.0/24 Australia 100%100
203.21.40.0/24 Australia 100%111
203.21.41.0/24 China 100%100
203.21.42.0/24 Thailand 100%112
203.21.43.0/24 Thailand 100%110
203.21.44.0/24 China 100%100
203.21.45.0/24 Australia 100%100
203.21.46.0/24 Australia 100%100
203.21.47.0/24 Canada 100%110
203.21.48.0/24 Australia 100%100
203.21.49.0/24 Australia 100%110
203.21.50.0/24 Australia 100%110
203.21.51.0/24 Australia 100%110
203.21.52.0/24 Australia 100%110
203.21.53.0/24 Australia 100%110
203.21.54.0/24 Australia 100%110
203.21.55.0/24 Australia 100%110
203.21.56.0/24 Australia 100%110
203.21.57.0/24 Australia 100%110
203.21.58.0/24 Australia 100%110
203.21.59.0/24 Australia 100%110
203.21.60.0/24 Australia 100%100
203.21.61.0/24 Australia 100%100
203.21.62.0/24 Australia 100%100
203.21.63.0/24 Australia 100%110
203.21.64.0/24 Australia 100%100
203.21.65.0/24 Australia 100%110
203.21.66.0/24 Czechia 100%111
203.21.67.0/24 Australia 100%100
203.21.68.0/24 China 100%100
203.21.69.0/24 Australia 100%100
203.21.70.0/24 Australia 100%100
203.21.71.0/24 Australia 100%100
203.21.72.0/24 Australia 100%110
203.21.73.0/24 Australia 100%100
203.21.74.0/24 Indonesia 100%100
203.21.75.0/24 Indonesia 100%100
203.21.76.0/24 Australia 100%110
203.21.77.0/24 Australia 100%110
203.21.78.0/24 Australia 100%110
203.21.79.0/24 Australia 100%110
203.21.80.0/24 Australia 100%100
203.21.81.0/24 Australia 100%100
203.21.82.0/24 China 100%100
203.21.83.0/24 Australia 100%110
203.21.84.0/24 Australia 100%100
203.21.85.0/24 Australia 100%100
203.21.86.0/24 Australia 100%100
203.21.87.0/24 Australia 100%100
203.21.88.0/24 Australia 100%110
203.21.89.0/24 Australia 100%110
203.21.90.0/24 Australia 100%110
203.21.91.0/24 Australia 100%110
203.21.92.0/24 Australia 100%100
203.21.93.0/24 Australia 100%100
203.21.94.0/24 Australia 100%100
203.21.95.0/24 Australia 100%110
203.21.96.0/24 China 100%100
203.21.97.0/24 China 100%100
203.21.98.0/24 China 100%100
203.21.99.0/24 China 100%100
203.21.100.0/24 Australia 100%100
203.21.101.0/24 Australia 100%100
203.21.102.0/24 Australia 100%100
203.21.103.0/24 Australia 100%100
203.21.104.0/24 Canada 100%110
203.21.105.0/24 Australia 100%100
203.21.106.0/24 Australia 100%100
203.21.107.0/24 Australia 100%100
203.21.108.0/24 Australia 100%110
203.21.109.0/24 Australia 100%110
203.21.110.0/24 Australia 100%110
203.21.111.0/24 Australia 100%110
203.21.112.0/24 Australia 100%111
203.21.113.0/24 Australia 100%112
203.21.114.0/24 Australia 100%114
203.21.115.0/24 Australia 100%112
203.21.116.0/24 Australia 100%112
203.21.117.0/24 Australia 100%112
203.21.118.0/24 Australia 100%112
203.21.119.0/24 Australia 100%113
203.21.120.0/24 Mongolia 100%111
203.21.121.0/24 Australia 100%110
203.21.122.0/24 Australia 100%100
203.21.123.0/24 Australia 100%100
203.21.124.0/24 China 100%100
203.21.125.0/24 Australia 100%110
203.21.126.0/24 Australia 100%100
203.21.127.0/24 Australia 100%100
203.21.128.0/24 Australia 100%110
203.21.129.0/24 Australia 100%110
203.21.130.0/24 Australia 100%110
203.21.131.0/24 Australia 100%110
203.21.132.0/24 Australia 100%100
203.21.133.0/24 Australia 100%100
203.21.134.0/24 Australia 100%110
203.21.135.0/24 Australia 100%100
203.21.136.0/24 China 100%100
203.21.137.0/24 China 100%100
203.21.138.0/24 Australia 100%100
203.21.139.0/24 Australia 100%100
203.21.140.0/24 American Samoa 100%110
203.21.141.0/24 Philippines 100%110
203.21.142.0/24 Philippines 100%110
203.21.143.0/24 Micronesia 100%110
203.21.144.0/24 Australia 100%100
203.21.145.0/24 China 100%100
203.21.146.0/24 Australia 100%100
203.21.147.0/24 Australia 100%100
203.21.148.0/24 Australia 100%100
203.21.149.0/24 Australia 100%100
203.21.150.0/24 Australia 100%111
203.21.151.0/24 Australia 100%110
203.21.152.0/24 Australia 100%110
203.21.153.0/24 Australia 100%110
203.21.154.0/24 Australia 100%110
203.21.155.0/24 Australia 100%100
203.21.156.0/24 Australia 100%100
203.21.157.0/24 Australia 100%100
203.21.158.0/24 Australia 100%100
203.21.159.0/24 Australia 100%100
203.21.160.0/24 Australia 100%100
203.21.161.0/24 Australia 100%100
203.21.162.0/24 Australia 100%100
203.21.163.0/24 Australia 100%100
203.21.164.0/24 Australia 100%100
203.21.165.0/24 Australia 100%100
203.21.166.0/24 Australia 100%100
203.21.167.0/24 Australia 100%100
203.21.168.0/24 Australia 100%100
203.21.169.0/24 Australia 100%100
203.21.170.0/24 Australia 100%100
203.21.171.0/24 Australia 100%100
203.21.172.0/24 Australia 100%100
203.21.173.0/24 Australia 100%100
203.21.174.0/24 Australia 100%100
203.21.175.0/24 Australia 100%100
203.21.176.0/24 Australia 100%100
203.21.177.0/24 Australia 100%100
203.21.178.0/24 Australia 100%100
203.21.179.0/24 Australia 100%100
203.21.180.0/24 Australia 100%100
203.21.181.0/24 Australia 100%100
203.21.182.0/24 Australia 100%110
203.21.183.0/24 Australia 100%110
203.21.184.0/24 Australia 100%100
203.21.185.0/24 Australia 100%100
203.21.186.0/24 Australia 100%100
203.21.187.0/24 Australia 100%100
203.21.188.0/24 Australia 100%100
203.21.189.0/24 Australia 100%100
203.21.190.0/24 Australia 100%111
203.21.191.0/24 Australia 100%111
203.21.192.0/24 Australia 100%110
203.21.193.0/24 Australia 100%110
203.21.194.0/24 Australia 100%110
203.21.195.0/24 Australia 100%110
203.21.196.0/24 Australia 100%110
203.21.197.0/24 Australia 100%110
203.21.198.0/24 Australia 100%110
203.21.199.0/24 Australia 100%110
203.21.200.0/24 Australia 100%110
203.21.201.0/24 Australia 100%110
203.21.202.0/24 Australia 100%110
203.21.203.0/24 Australia 100%110
203.21.204.0/24 Australia 100%100
203.21.205.0/24 Australia 100%100
203.21.206.0/24 China 100%100
203.21.207.0/24 Australia 100%110
203.21.208.0/24 Australia 100%100
203.21.209.0/24 Australia 100%100
203.21.210.0/24 Australia 100%100
203.21.211.0/24 Australia 100%100
203.21.212.0/24 Australia 100%100
203.21.213.0/24 Australia 100%100
203.21.214.0/24 Australia 100%100
203.21.215.0/24 Australia 100%100
203.21.216.0/24 Australia 100%100
203.21.217.0/24 Australia 100%100
203.21.218.0/24 Australia 100%100
203.21.219.0/24 Australia 100%100
203.21.220.0/24 Australia 100%100
203.21.221.0/24 Australia 100%100
203.21.222.0/24 Australia 100%100
203.21.223.0/24 Australia 100%100
203.21.224.0/24 Australia 100%100
203.21.225.0/24 Australia 100%100
203.21.226.0/24 Australia 100%100
203.21.227.0/24 Australia 100%100
203.21.228.0/24 Australia 100%100
203.21.229.0/24 Australia 100%100
203.21.230.0/24 Australia 100%100
203.21.231.0/24 Australia 100%100
203.21.232.0/24 Australia 100%100
203.21.233.0/24 Australia 100%100
203.21.234.0/24 Australia 100%100
203.21.235.0/24 Australia 100%100
203.21.236.0/24 Australia 100%100
203.21.237.0/24 Australia 100%100
203.21.238.0/24 Australia 100%100
203.21.239.0/24 Australia 100%100
203.21.240.0/24 Australia 100%100
203.21.241.0/24 Australia 100%100
203.21.242.0/24 Australia 100%100
203.21.243.0/24 Australia 100%100
203.21.244.0/24 Australia 100%100
203.21.245.0/24 Australia 100%100
203.21.246.0/24 Australia 100%100
203.21.247.0/24 Australia 100%100
203.21.248.0/24 Australia 100%100
203.21.249.0/24 Australia 100%100
203.21.250.0/24 Australia 100%100
203.21.251.0/24 Australia 100%100
203.21.252.0/24 Australia 100%100
203.21.253.0/24 Australia 100%100
203.21.254.0/24 Australia 100%100
203.21.255.0/24 Australia 100%100

Pingable IPs

1,151 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
203.21.201.249AS135415 RACQ Operations Pty Ltd11.58ms from Sydney,  AU
203.21.196.61AS1221 Telstra Limited12.47ms from Sydney,  AU
203.21.183.250AS24463 Pacific National Services Pty Ltd0.58ms from Sydney,  AU
203.21.182.13AS24463 Pacific National Services Pty Ltd1.30ms from Sydney,  AU
203.21.195.1AS1221 Telstra Limited12.77ms from Sydney,  AU
203.21.199.197AS1221 Telstra Limited12.70ms from Sydney,  AU
203.21.200.2AS135415 RACQ Operations Pty Ltd11.57ms from Sydney,  AU
203.21.191.250AS24463 Pacific National Services Pty Ltd0.54ms from Sydney,  AU
203.21.193.1AS1221 Telstra Limited12.58ms from Sydney,  AU
203.21.190.208AS24463 Pacific National Services Pty Ltd1.05ms from Sydney,  AU

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.
209.42.197.32AS63410 PrivateSystems Networks0.24ms from Amsterdam,  NL
134.70.26.0AS31898 Oracle Corporation0.28ms from Ashburn,  US
170.239.200.96AS266362 NORTE TELECOM PROVEDOR DE INTERNET EIRELI15.93ms from Brasilia,  BR
134.65.56.0AS31898 Oracle Corporation0.13ms from Cardiff,  GB
40.87.159.144AS8075 Microsoft Corporation0.20ms from Dublin,  IE
83.252.27.208AS1257 Tele2 Sverige AB1.07ms from Goeteborg,  SE
185.227.115.48AS15817 Mittwald CM Service GmbH und Co. KG3.21ms from Hamburg,  DE
121.237.179.128AS134756 CHINANET Nanjing Jishan IDC network3.09ms from Huai'an,  CN
66.27.99.48AS20001 Charter Communications Inc5.60ms from Los Angeles,  US
129.122.136.48AS37645 Finstar - Sociedade de Investimento e Participacoes S.A2.00ms from Luanda,  AO

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -m5 203.21.78.198
traceroute to 203.21.78.198 (203.21.78.198): 5 hops max, 52 byte packets
1 [AS15169] 74.125.251.94 1.537 ms
2 [AS15169] 192.178.97.88 1.244 ms
3 *
4 *
5 *
Measurement taken from  IPinfo ProbeNet in Sydney, AU
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