AS637 DNIC-ASBLK-00616-00665

Not flagged: treated as regular traffic

AS637 is not on Fraudex's VPN, proxy and datacenter list, so its IPs are treated like ordinary home, mobile or business connections. A single address can still be flagged if it is a Tor exit relay.

CountryUnited States
IPv4 ranges197
IPv4 addresses952,320
IPv6 ranges0
Tor exits now0

Check an IP from AS637

Look up any address in real time with the free IP checker, or from your own code:

curl "https://fraudex.xyz/api/check?ip=137.232.161.0" \
  -H "X-API-Key: fx_your_key"

The answer includes the network (AS637), the country and a VPN, proxy, Tor and bot verdict, in under a millisecond. Plans start at $40 for 30 days of unlimited lookups.

IPv4 ranges announced by AS637

Showing the first 100 of 197 ranges.

First IPLast IPCIDRAddresses
137.232.161.0137.232.161.255137.232.161.0/24256
137.232.194.0137.232.194.255137.232.194.0/24256
137.233.5.0137.233.5.255137.233.5.0/24256
137.234.64.0137.234.67.255137.234.64.0/221,024
137.234.76.0137.234.76.255137.234.76.0/24256
137.234.80.0137.234.84.255137.234.80.0/22, 137.234.84.0/241,280
137.234.86.0137.234.87.255137.234.86.0/23512
137.234.110.0137.234.110.255137.234.110.0/24256
137.234.139.0137.234.140.255137.234.139.0/24, 137.234.140.0/24512
137.234.148.0137.234.151.255137.234.148.0/221,024
137.234.156.0137.234.167.255137.234.156.0/22, 137.234.160.0/213,072
137.234.181.0137.234.183.255137.234.181.0/24, 137.234.182.0/23768
137.234.185.0137.234.186.255137.234.185.0/24, 137.234.186.0/24512
137.234.192.0137.234.195.255137.234.192.0/221,024
137.234.200.0137.234.204.255137.234.200.0/22, 137.234.204.0/241,280
137.234.208.0137.234.208.255137.234.208.0/24256
137.234.212.0137.234.212.255137.234.212.0/24256
137.234.244.0137.234.244.255137.234.244.0/24256
137.235.4.0137.235.4.255137.235.4.0/24256
137.235.126.0137.235.131.255137.235.126.0/23, 137.235.128.0/221,536
137.235.133.0137.235.133.255137.235.133.0/24256
137.235.141.0137.235.141.255137.235.141.0/24256
137.235.148.0137.235.148.255137.235.148.0/24256
137.235.172.0137.235.172.255137.235.172.0/24256
137.235.190.0137.235.190.255137.235.190.0/24256
137.235.200.0137.235.200.255137.235.200.0/24256
137.235.202.0137.235.202.255137.235.202.0/24256
137.235.210.0137.235.210.255137.235.210.0/24256
137.235.236.0137.235.239.255137.235.236.0/221,024
138.156.0.0138.156.233.255138.156.0.0/17, 138.156.128.0/18, 138.156.192.0/19, 138.156.224.0/21 +159,904
138.156.234.0138.157.31.255138.156.234.0/23, 138.156.236.0/22, 138.156.240.0/20, 138.157.0.0/1913,824
138.157.56.0138.157.57.255138.157.56.0/23512
138.157.64.0138.157.65.255138.157.64.0/23512
138.157.68.0138.157.69.255138.157.68.0/23512
138.157.78.0138.157.81.255138.157.78.0/23, 138.157.80.0/231,024
138.157.84.0138.157.85.255138.157.84.0/23512
138.157.88.0138.157.89.255138.157.88.0/23512
138.157.98.0138.157.99.255138.157.98.0/23512
138.157.105.0138.157.107.255138.157.105.0/24, 138.157.106.0/23768
138.157.110.0138.157.110.255138.157.110.0/24256
138.157.112.0138.157.117.255138.157.112.0/22, 138.157.116.0/231,536
138.157.119.0138.157.119.255138.157.119.0/24256
138.157.124.0138.157.125.255138.157.124.0/23512
138.157.130.0138.157.131.255138.157.130.0/23512
138.157.133.0138.157.133.255138.157.133.0/24256
138.157.207.0138.157.207.255138.157.207.0/24256
138.157.211.0138.157.212.255138.157.211.0/24, 138.157.212.0/24512
138.157.216.0138.157.216.255138.157.216.0/24256
138.157.224.0138.157.225.255138.157.224.0/23512
138.157.240.0138.157.240.255138.157.240.0/24256
138.157.248.0138.157.249.255138.157.248.0/23512
138.158.0.0138.158.255.255138.158.0.0/1665,536
138.163.160.0138.163.163.255138.163.160.0/221,024
138.167.0.0138.167.15.255138.167.0.0/204,096
138.167.20.0138.167.21.255138.167.20.0/23512
138.167.32.0138.167.85.255138.167.32.0/19, 138.167.64.0/20, 138.167.80.0/22, 138.167.84.0/2313,824
138.167.104.0138.167.113.255138.167.104.0/21, 138.167.112.0/232,560
138.167.119.0138.167.167.255138.167.119.0/24, 138.167.120.0/21, 138.167.128.0/19, 138.167.160.0/2112,544
138.167.176.0138.167.191.255138.167.176.0/204,096
138.167.200.0138.167.203.255138.167.200.0/221,024
138.167.208.0138.167.232.255138.167.208.0/20, 138.167.224.0/21, 138.167.232.0/246,400
138.167.235.0138.167.239.255138.167.235.0/24, 138.167.236.0/221,280
138.167.248.0138.167.251.255138.167.248.0/221,024
138.168.0.0138.168.183.255138.168.0.0/17, 138.168.128.0/19, 138.168.160.0/20, 138.168.176.0/2147,104
138.168.184.0138.168.194.255138.168.184.0/21, 138.168.192.0/23, 138.168.194.0/242,816
138.168.195.0138.168.255.255138.168.195.0/24, 138.168.196.0/22, 138.168.200.0/21, 138.168.208.0/20 +115,616
139.241.81.0139.241.81.255139.241.81.0/24256
158.236.0.0158.239.15.255158.236.0.0/15, 158.238.0.0/16, 158.239.0.0/20200,704
158.239.32.0158.239.147.255158.239.32.0/19, 158.239.64.0/18, 158.239.128.0/20, 158.239.144.0/2229,696
158.239.148.0158.239.159.255158.239.148.0/22, 158.239.152.0/213,072
158.239.160.0158.239.161.255158.239.160.0/23512
158.239.162.0158.239.175.255158.239.162.0/23, 158.239.164.0/22, 158.239.168.0/213,584
158.239.176.0158.239.183.255158.239.176.0/212,048
158.239.184.0158.240.4.255158.239.184.0/21, 158.239.192.0/18, 158.240.0.0/22, 158.240.4.0/2419,712
158.240.32.0158.240.54.255158.240.32.0/20, 158.240.48.0/22, 158.240.52.0/23, 158.240.54.0/245,888
158.240.58.0158.240.58.255158.240.58.0/24256
158.240.96.0158.240.97.255158.240.96.0/23512
158.240.131.0158.240.137.255158.240.131.0/24, 158.240.132.0/22, 158.240.136.0/231,792
158.240.160.0158.240.167.255158.240.160.0/212,048
158.240.174.0158.240.175.255158.240.174.0/23512
158.240.180.0158.240.180.255158.240.180.0/24256
158.240.183.0158.240.183.255158.240.183.0/24256
158.240.198.0158.240.198.255158.240.198.0/24256
158.240.210.0158.240.212.255158.240.210.0/23, 158.240.212.0/24768
158.240.216.0158.240.217.255158.240.216.0/23512
158.240.226.0158.240.227.255158.240.226.0/23512
158.240.242.0158.240.248.255158.240.242.0/23, 158.240.244.0/22, 158.240.248.0/241,792
158.243.0.0158.243.7.255158.243.0.0/212,048
158.243.8.0158.243.13.255158.243.8.0/22, 158.243.12.0/231,536
158.243.14.0158.243.20.255158.243.14.0/23, 158.243.16.0/22, 158.243.20.0/241,792
158.243.21.0158.243.49.255158.243.21.0/24, 158.243.22.0/23, 158.243.24.0/21, 158.243.32.0/20 +17,424
158.243.50.0158.243.58.255158.243.50.0/23, 158.243.52.0/22, 158.243.56.0/23, 158.243.58.0/242,304
158.243.59.0158.243.86.255158.243.59.0/24, 158.243.60.0/22, 158.243.64.0/20, 158.243.80.0/22 +27,168
158.243.87.0158.243.88.255158.243.87.0/24, 158.243.88.0/24512
158.243.89.0158.243.94.255158.243.89.0/24, 158.243.90.0/23, 158.243.92.0/23, 158.243.94.0/241,536
158.243.95.0158.243.96.255158.243.95.0/24, 158.243.96.0/24512
158.243.97.0158.243.98.255158.243.97.0/24, 158.243.98.0/24512
158.243.99.0158.243.106.255158.243.99.0/24, 158.243.100.0/22, 158.243.104.0/23, 158.243.106.0/242,048
158.243.107.0158.243.111.255158.243.107.0/24, 158.243.108.0/221,280
158.243.112.0158.243.134.255158.243.112.0/20, 158.243.128.0/22, 158.243.132.0/23, 158.243.134.0/245,888

Questions about AS637

Is AS637 a VPN or hosting network?

Fraudex does not list AS637 (DNIC-ASBLK-00616-00665) as a VPN, proxy or hosting network. Its addresses are treated as regular traffic, apart from any Tor exit relays.

Which country is AS637 registered in?

AS637 is registered in United States. Individual addresses can be used elsewhere, so check the IP itself when location matters.

How many IP addresses does AS637 have?

It announces 197 IPv4 ranges with 952,320 addresses in total.

How do I block traffic from AS637?

Blocking a whole network by number goes stale as ranges change hands. It is more reliable to check each visitor's IP when they sign up, log in or pay: the Fraudex API returns the network and a VPN and bot verdict, so you can block, challenge or just log flagged traffic. See why an IP blocking API pays for itself.

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