AS17621 is the autonomous system of China Unicom Shanghai network. It holds 837,632 IPv4 addresses in 345 prefixes plus 37 IPv6 ranges, mainly in 
China.
By IPv4 addresses the network ranks #393 worldwide and #26 of 587 networks in China. That is 0.24% of the country’s IPv4 space.
The network spreads across 2 countries: China 99%, Germany 0.79%.
The largest block is 139.226.0.0 to 139.227.230.255 with 124,672 addresses, geolocated to Jinrongjie (Xicheng District).
- IPv4 addresses
- 837,632
- IPv4 prefixes
- 345
- World rank
- #393
- Country share
- 0.24%
- IPv6 ranges
- 37
Addresses by country
Largest blocks
- 139.226.0.0 Jinrongjie (Xicheng District)124,672
- 58.246.0.0 Shanghai41,728
- 140.206.0.0 Jinrongjie (Xicheng District)40,960
- 58.246.224.0 Shanghai38,400
- 58.247.119.0 Shanghai21,760
- 223.167.0.0 Shanghai20,480
- 27.115.0.0 Shanghai20,480
- 112.64.144.0 Shanghai18,176
Networks of similar size
844,032
843,008
841,984
840,448
836,096
830,720IPv4 prefixes
- 27.115.0.0/18
- 27.115.64.0/20
- 27.115.81.0/24
- 27.115.82.0/23
- 27.115.84.0/22
- 27.115.88.0/21
- 27.115.96.0/19
- 43.243.148.0/22
- 43.250.146.0/23
- 43.254.224.0/22
- 58.246.0.0/17
- 58.246.128.0/19
- 58.246.160.0/23
- 58.246.162.0/24
- 58.246.164.0/24
- 58.246.166.0/23
- 58.246.168.0/21
- 58.246.176.0/20
- 58.246.192.0/21
- 58.246.200.0/22
- 58.246.204.0/23
- 58.246.206.0/24
- 58.246.208.0/21
- 58.246.216.0/22
- 58.246.224.0/19
- 58.247.0.0/18
- 58.247.64.0/19
- 58.247.96.0/20
- 58.247.112.0/22
- 58.247.116.0/23
- 58.247.119.0/24
- 58.247.120.0/21
- 58.247.128.0/18
- 58.247.192.0/21
- 58.247.200.0/22
- 58.247.208.0/22
- 58.247.216.0/21
- 58.247.224.0/20
- 58.247.240.0/21
- 58.247.248.0/22
- 58.247.252.0/23
- 59.81.64.0/23
- 59.81.106.0/23
- 101.52.212.0/22
- 101.52.216.0/21
- 101.52.248.0/21
- 103.5.192.0/23
- 103.5.194.0/24
- 103.24.116.0/24
- 103.24.118.0/23
- 103.36.136.0/22
- 103.36.168.0/24
- 103.36.172.0/23
- 103.38.232.0/22
- 103.45.169.0/24
- 103.61.190.0/24
- 103.108.244.0/24
- 103.111.64.0/24
- 103.140.14.0/23
- 103.144.159.0/24
- 103.147.124.0/24
- 103.164.32.0/24
- 103.200.222.0/24
- 103.200.224.0/24
- 103.200.232.0/24
- 103.202.92.0/22
- 103.202.96.0/20
- 103.202.112.0/22
- 103.202.120.0/21
- 103.202.128.0/20
- 103.202.144.0/22
- 103.231.16.0/24
- 103.234.128.0/23
- 103.234.131.0/24
- 103.238.184.0/24
- 103.250.192.0/22
- 106.75.208.0/20
- 106.75.224.0/19
- 110.43.128.0/19
- 112.64.0.0/19
- 112.64.36.0/22
- 112.64.40.0/22
- 112.64.44.0/24
- 112.64.46.0/23
- 112.64.48.0/20
- 112.64.65.0/24
- 112.64.66.0/23
- 112.64.68.0/22
- 112.64.72.0/21
- 112.64.80.0/20
- 112.64.96.0/20
- 112.64.114.0/24
- 112.64.116.0/22
- 112.64.120.0/21
- 112.64.128.0/21
- 112.64.136.0/22
- 112.64.140.0/23
- 112.64.142.0/24
- 112.64.144.0/20
- 112.64.160.0/19
- 112.64.192.0/20
- 112.64.208.0/22
- 112.64.212.0/23
- 112.64.214.0/24
- 112.64.216.0/21
- 112.64.224.0/21
- 112.64.232.0/23
- 112.64.234.0/24
- 112.64.238.0/23
- 112.65.0.0/20
- 112.65.16.0/22
- 112.65.20.0/23
- 112.65.22.0/24
- 112.65.24.0/21
- 112.65.32.0/19
- 112.65.65.0/24
- 112.65.67.0/24
- 112.65.68.0/22
- 112.65.76.0/22
- 112.65.80.0/21
- 112.65.88.0/22
- 112.65.92.0/23
- 112.65.95.0/24
- 112.65.96.0/20
- 112.65.113.0/24
- 112.65.114.0/23
- 112.65.118.0/23
- 112.65.120.0/21
- 112.65.128.0/19
- 112.65.160.0/20
- 112.65.176.0/21
- 112.65.185.0/24
- 112.65.186.0/23
- 112.65.188.0/22
- 112.65.196.0/22
- 112.65.200.0/21
- 112.65.208.0/21
- 112.65.218.0/24
- 112.65.221.0/24
- 112.65.234.0/24
- 112.65.236.0/24
- 112.65.239.0/24
- 113.21.237.0/24
- 113.21.238.0/24
- 113.31.96.0/19
- 113.31.144.0/20
- 113.31.160.0/19
- 114.28.248.0/24
- 116.66.48.0/23
- 116.66.50.0/24
- 116.66.53.0/24
- 116.128.200.0/21
- 116.128.208.0/20
- 120.133.216.0/21
- 120.133.228.0/22
- 120.133.236.0/22
- 120.136.168.0/21
- 120.136.176.0/22
- 120.136.184.0/22
- 122.144.240.0/24
- 123.49.192.0/23
- 139.226.0.0/16
- 139.227.0.0/17
- 139.227.128.0/18
- 139.227.192.0/19
- 139.227.224.0/22
- 139.227.228.0/23
- 139.227.230.0/24
- 139.227.232.0/21
- 139.227.240.0/20
- 140.206.0.0/17
- 140.206.128.0/19
- 140.206.168.0/21
- 140.206.176.0/20
- 140.206.192.0/21
- 140.206.205.0/24
- 140.206.206.0/23
- 140.206.210.0/24
- 140.206.220.0/22
- 140.206.224.0/22
- 140.206.233.0/24
- 140.206.235.0/24
- 140.206.236.0/23
- 140.206.239.0/24
- 140.206.245.0/24
- 140.206.246.0/24
- 140.206.248.0/21
- 140.207.0.0/20
- 140.207.16.0/21
- 140.207.24.0/23
- 140.207.29.0/24
- 140.207.30.0/23
- 140.207.32.0/20
- 140.207.48.0/22
- 140.207.52.0/23
- 140.207.60.0/22
- 140.207.74.0/23
- 140.207.76.0/22
- 140.207.80.0/20
- 140.207.96.0/20
- 140.207.112.0/22
- 140.207.116.0/23
- 140.207.132.0/23
- 140.207.136.0/23
- 140.207.142.0/23
- 140.207.144.0/20
- 140.207.160.0/20
- 140.207.190.0/24
- 140.207.192.0/20
- 140.207.232.0/24
- 140.207.234.0/24
- 140.207.236.0/24
- 140.207.242.0/23
- 140.207.247.0/24
- 140.207.250.0/24
- 150.242.238.0/23
- 155.126.176.0/23
- 175.102.16.0/20
- 175.102.132.0/22
- 182.175.224.0/24
- 182.175.240.0/22
- 194.138.203.0/24
- 202.47.104.0/23
- 202.47.106.0/24
- 202.47.108.0/23
- 202.57.192.0/23
- 202.57.197.0/24
- 202.89.96.0/24
- 202.90.96.0/20
- 202.136.208.0/21
- 202.136.218.0/24
- 202.136.220.0/24
- 202.136.222.0/23
- 203.76.208.0/21
- 203.76.216.0/22
- 210.2.1.0/24
- 210.22.64.0/19
- 210.22.96.0/20
- 210.22.112.0/22
- 210.22.118.0/23
- 210.22.120.0/21
- 210.22.128.0/19
- 210.22.160.0/22
- 210.22.164.0/24
- 210.22.166.0/23
- 210.22.168.0/21
- 210.22.176.0/20
- 210.22.220.0/22
- 210.22.248.0/22
- 210.22.252.0/24
- 210.22.254.0/23
- 210.51.35.0/24
- 210.51.42.0/24
- 210.51.60.0/24
- 210.52.213.0/24
- 210.52.214.0/23
- 210.52.216.0/22
- 210.52.222.0/23
- 211.95.0.0/20
- 211.95.16.0/22
- 211.95.20.0/23
- 211.95.23.0/24
- 211.95.24.0/21
- 211.95.33.0/24
- 211.95.34.0/23
- 211.95.36.0/22
- 211.95.40.0/21
- 211.95.48.0/22
- 211.95.52.0/23
- 211.95.56.0/22
- 211.95.61.0/24
- 211.95.62.0/23
- 211.95.64.0/21
- 211.95.72.0/24
- 211.95.74.0/24
- 211.95.77.0/24
- 211.95.78.0/24
- 211.95.80.0/20
- 211.95.96.0/19
- 211.144.192.0/20
- 218.96.127.0/24
- 220.196.0.0/22
- 220.196.4.0/24
- 220.196.7.0/24
- 220.196.8.0/21
- 220.196.16.0/20
- 220.196.32.0/21
- 220.196.40.0/23
- 220.196.43.0/24
- 220.196.44.0/23
- 220.196.46.0/24
- 220.196.48.0/22
- 220.196.52.0/24
- 220.196.54.0/23
- 220.196.56.0/23
- 220.196.59.0/24
- 220.196.60.0/22
- 220.196.64.0/20
- 220.196.82.0/23
- 220.196.84.0/22
and 45 more prefixes
Questions and answers
Who owns AS17621?
Autonomous system AS17621 is operated by China Unicom Shanghai network.
How many IP addresses does AS17621 have?
The network holds 837,632 IPv4 addresses in 345 prefixes, plus 37 IPv6 ranges.
Which country is AS17621 in?
The main country is China, with addresses in 1 more countries.
How big is AS17621?
By IPv4 addresses it ranks #393 worldwide.
What is the largest address block of AS17621?
139.226.0.0 to 139.227.230.255, 124,672 addresses.