ASN Lookup

An ASN lookup helps you identify the Autonomous System Number (ASN) behind an IP address, including the ISP, network owner, and routing details. Use it to better understand IP ownership and network behavior.

Enter Autonomous System Number (ASN)

Result

Overview - AS637

 United States of America

637

United States Department of Defense (DOD)

nic.mil

(MIL) Military

930,816

0

IP Coverage

Netblock Number of IPs   
137.232.161.0/24 256
137.232.194.0/24 256
137.233.5.0/24 256
137.234.0.0/24 256
137.234.2.0/23 512
137.234.80.0/22 1,024
137.234.84.0/24 256
137.234.86.0/24 256
137.234.87.0/24 256
137.234.110.0/24 256
137.234.128.0/22 1,024
137.234.132.0/22 1,024
137.234.137.0/24 256
137.234.139.0/24 256
137.234.140.0/24 256
137.234.156.0/22 1,024
137.234.160.0/22 1,024
137.234.164.0/22 1,024
137.234.178.0/24 256
137.234.181.0/24 256
137.234.182.0/24 256
137.234.183.0/24 256
137.234.186.0/24 256
137.234.192.0/22 1,024
137.234.200.0/22 1,024
137.234.204.0/24 256
137.234.205.0/24 256
137.234.206.0/24 256
137.234.208.0/24 256
137.234.249.0/24 256
137.235.4.0/24 256
137.235.123.0/24 256
137.235.126.0/23 512
137.235.128.0/23 512
137.235.130.0/24 256
137.235.131.0/24 256
137.235.133.0/24 256
137.235.141.0/24 256
137.235.143.0/24 256
137.235.148.0/24 256
137.235.172.0/24 256
137.235.200.0/24 256
137.235.202.0/24 256
137.235.210.0/24 256
137.235.236.0/22 1,024
138.156.0.0/17 32,768
138.156.128.0/18 16,384
138.156.192.0/19 8,192
138.156.224.0/21 2,048
138.156.232.0/23 512
138.156.234.0/23 512
138.156.236.0/22 1,024
138.156.240.0/21 2,048
138.156.248.0/21 2,048
138.157.0.0/19 8,192
138.157.57.0/24 256
138.157.64.0/23 512
138.157.84.0/23 512
138.157.105.0/24 256
138.157.106.0/23 512
138.157.110.0/24 256
138.157.112.0/23 512
138.157.114.0/24 256
138.157.115.0/24 256
138.157.119.0/24 256
138.157.122.0/24 256
138.157.124.0/23 512
138.157.130.0/24 256
138.157.131.0/24 256
138.157.207.0/24 256
138.157.210.0/23 512
138.157.216.0/24 256
138.157.240.0/24 256
138.158.0.0/16 65,536
138.163.160.0/22 1,024
138.167.0.0/20 4,096
138.167.20.0/23 512
138.167.32.0/21 2,048
138.167.40.0/22 1,024
138.167.44.0/22 1,024
138.167.48.0/20 4,096
138.167.64.0/24 256
138.167.65.0/24 256
138.167.66.0/24 256
138.167.67.0/24 256
138.167.68.0/24 256
138.167.69.0/24 256
138.167.70.0/24 256
138.167.71.0/24 256
138.167.72.0/24 256
138.167.73.0/24 256
138.167.74.0/24 256
138.167.75.0/24 256
138.167.76.0/24 256
138.167.77.0/24 256
138.167.78.0/24 256
138.167.79.0/24 256
138.167.80.0/24 256
138.167.81.0/24 256
138.167.82.0/24 256
138.167.83.0/24 256
138.167.84.0/24 256
138.167.85.0/24 256
138.167.104.0/22 1,024
138.167.108.0/22 1,024
138.167.112.0/23 512
138.167.119.0/24 256
138.167.120.0/21 2,048
138.167.128.0/23 512
138.167.130.0/23 512
138.167.132.0/23 512
138.167.134.0/23 512
138.167.136.0/23 512
138.167.138.0/23 512
138.167.140.0/22 1,024
138.167.144.0/20 4,096
138.167.160.0/21 2,048
138.167.176.0/20 4,096
138.167.200.0/22 1,024
138.167.206.0/24 256
138.167.208.0/20 4,096
138.167.224.0/21 2,048
138.167.232.0/24 256
138.167.235.0/24 256
138.167.236.0/22 1,024
138.167.248.0/22 1,024
138.168.0.0/21 2,048
138.168.8.0/22 1,024
138.168.12.0/23 512
138.168.14.0/23 512
138.168.16.0/20 4,096
138.168.32.0/19 8,192
138.168.64.0/18 16,384
138.168.128.0/19 8,192
138.168.160.0/20 4,096
138.168.176.0/22 1,024
138.168.180.0/23 512
138.168.182.0/24 256
138.168.183.0/24 256
138.168.184.0/22 1,024
138.168.188.0/23 512
138.168.190.0/23 512
138.168.192.0/23 512
138.168.194.0/24 256
138.168.195.0/24 256
138.168.196.0/22 1,024
138.168.200.0/21 2,048
138.168.208.0/20 4,096
138.168.224.0/19 8,192
139.241.81.0/24 256
158.236.0.0/17 32,768
158.236.128.0/17 32,768
158.237.0.0/16 65,536
158.238.0.0/16 65,536
158.239.0.0/20 4,096
158.239.32.0/19 8,192
158.239.64.0/18 16,384
158.239.128.0/20 4,096
158.239.144.0/22 1,024
158.239.148.0/22 1,024
158.239.152.0/21 2,048
158.239.160.0/24 256
158.239.161.0/24 256
158.239.162.0/23 512
158.239.164.0/22 1,024
158.239.168.0/23 512
158.239.170.0/23 512
158.239.172.0/23 512
158.239.174.0/23 512
158.239.176.0/22 1,024
158.239.180.0/22 1,024
158.239.184.0/22 1,024
158.239.188.0/22 1,024
158.239.192.0/18 16,384
158.240.0.0/23 512
158.240.2.0/23 512
158.240.4.0/24 256
158.240.32.0/20 4,096
158.240.48.0/22 1,024
158.240.52.0/23 512
158.240.54.0/24 256
158.240.58.0/24 256
158.240.96.0/23 512
158.240.131.0/24 256
158.240.132.0/24 256
158.240.133.0/24 256
158.240.134.0/24 256
158.240.135.0/24 256
158.240.136.0/24 256
158.240.137.0/24 256
158.240.160.0/22 1,024
158.240.164.0/22 1,024
158.240.174.0/24 256
158.240.175.0/24 256
158.240.180.0/24 256
158.240.183.0/24 256
158.240.198.0/24 256
158.240.210.0/24 256
158.240.211.0/24 256
158.240.212.0/24 256
158.240.216.0/23 512
158.240.226.0/23 512
158.240.242.0/23 512
158.240.244.0/22 1,024
158.240.248.0/24 256
158.243.0.0/22 1,024
158.243.4.0/23 512
158.243.6.0/24 256
158.243.7.0/24 256
158.243.8.0/22 1,024
158.243.12.0/24 256
158.243.13.0/24 256
158.243.14.0/24 256
158.243.15.0/24 256
158.243.16.0/22 1,024
158.243.20.0/24 256
158.243.21.0/24 256
158.243.22.0/23 512
158.243.24.0/21 2,048
158.243.32.0/24 256
158.243.33.0/24 256
158.243.34.0/24 256
158.243.35.0/24 256
158.243.36.0/24 256
158.243.37.0/24 256
158.243.38.0/24 256
158.243.39.0/24 256
158.243.40.0/24 256
158.243.41.0/24 256
158.243.42.0/24 256
158.243.43.0/24 256
158.243.44.0/24 256
158.243.45.0/24 256
158.243.46.0/23 512
158.243.48.0/24 256
158.243.49.0/24 256
158.243.50.0/24 256
158.243.51.0/24 256
158.243.52.0/24 256
158.243.53.0/24 256
158.243.54.0/24 256
158.243.55.0/24 256
158.243.56.0/24 256
158.243.57.0/24 256
158.243.58.0/24 256
158.243.59.0/24 256
158.243.60.0/24 256
158.243.61.0/24 256
158.243.62.0/24 256
158.243.63.0/24 256
158.243.64.0/24 256
158.243.65.0/24 256
158.243.66.0/24 256
158.243.67.0/24 256
158.243.68.0/24 256
158.243.69.0/24 256
158.243.70.0/24 256
158.243.71.0/24 256
158.243.72.0/23 512
158.243.74.0/24 256
158.243.75.0/24 256
158.243.76.0/24 256
158.243.77.0/24 256
158.243.78.0/24 256
158.243.79.0/24 256
158.243.80.0/24 256
158.243.81.0/24 256
158.243.82.0/24 256
158.243.83.0/24 256
158.243.84.0/24 256
158.243.85.0/24 256
158.243.86.0/24 256
158.243.87.0/24 256
158.243.88.0/24 256
158.243.89.0/24 256
158.243.90.0/24 256
158.243.91.0/24 256
158.243.92.0/24 256
158.243.93.0/24 256
158.243.94.0/24 256
158.243.95.0/24 256
158.243.96.0/24 256
158.243.97.0/24 256
158.243.98.0/24 256
158.243.99.0/24 256
158.243.100.0/24 256
158.243.101.0/24 256
158.243.102.0/24 256
158.243.103.0/24 256
158.243.104.0/24 256
158.243.105.0/24 256
158.243.106.0/24 256
158.243.107.0/24 256
158.243.108.0/23 512
158.243.110.0/24 256
158.243.111.0/24 256
158.243.112.0/24 256
158.243.113.0/24 256
158.243.114.0/24 256
158.243.115.0/24 256
158.243.116.0/24 256
158.243.117.0/24 256
158.243.118.0/24 256
158.243.119.0/24 256
158.243.120.0/24 256
158.243.121.0/24 256
158.243.122.0/24 256
158.243.123.0/24 256
158.243.124.0/23 512
158.243.126.0/24 256
158.243.127.0/24 256
158.243.128.0/24 256
158.243.129.0/24 256
158.243.130.0/23 512
158.243.132.0/24 256
158.243.133.0/24 256
158.243.134.0/24 256
158.243.135.0/24 256
158.243.136.0/24 256
158.243.137.0/24 256
158.243.138.0/24 256
158.243.139.0/24 256
158.243.140.0/24 256
158.243.141.0/24 256
158.243.142.0/24 256
158.243.143.0/24 256
158.243.144.0/24 256
158.243.145.0/24 256
158.243.146.0/24 256
158.243.147.0/24 256
158.243.148.0/24 256
158.243.149.0/24 256
158.243.150.0/24 256
158.243.151.0/24 256
158.243.152.0/24 256
158.243.153.0/24 256
158.243.154.0/24 256
158.243.155.0/24 256
158.243.156.0/24 256
158.243.157.0/24 256
158.243.158.0/24 256
158.243.159.0/24 256
158.243.160.0/24 256
158.243.161.0/24 256
158.243.162.0/24 256
158.243.163.0/24 256
158.243.164.0/24 256
158.243.165.0/24 256
158.243.166.0/24 256
158.243.167.0/24 256
158.243.168.0/24 256
158.243.169.0/24 256
158.243.170.0/24 256
158.243.171.0/24 256
158.243.172.0/24 256
158.243.173.0/24 256
158.243.174.0/23 512
158.243.176.0/24 256
158.243.177.0/24 256
158.243.178.0/24 256
158.243.179.0/24 256
158.243.180.0/24 256
158.243.181.0/24 256
158.243.182.0/23 512
158.243.184.0/21 2,048
158.243.192.0/24 256
158.243.193.0/24 256
158.243.194.0/24 256
158.243.195.0/24 256
158.243.196.0/24 256
158.243.197.0/24 256
158.243.198.0/24 256
158.243.199.0/24 256
158.243.200.0/24 256
158.243.201.0/24 256
158.243.202.0/24 256
158.243.203.0/24 256
158.243.204.0/24 256
158.243.205.0/24 256
158.243.206.0/23 512
158.243.208.0/23 512
158.243.210.0/24 256
158.243.211.0/24 256
158.243.212.0/24 256
158.243.213.0/24 256
158.243.214.0/24 256
158.243.215.0/24 256
158.243.216.0/23 512
158.243.218.0/24 256
158.243.219.0/24 256
158.243.220.0/24 256
158.243.221.0/24 256
158.243.222.0/24 256
158.243.223.0/24 256
158.243.224.0/24 256
158.243.225.0/24 256
158.243.226.0/24 256
158.243.227.0/24 256
158.243.228.0/22 1,024
158.243.232.0/22 1,024
158.243.236.0/23 512
158.243.238.0/24 256
158.243.239.0/24 256
158.243.240.0/20 4,096
158.244.0.0/18 16,384
158.244.64.0/18 16,384
158.244.128.0/18 16,384
158.245.0.0/17 32,768
158.245.128.0/18 16,384
158.245.192.0/18 16,384
192.156.21.0/24 256
192.156.56.0/23 512
192.156.79.0/24 256
204.223.8.0/21 2,048
204.223.34.0/23 512
204.223.36.0/22 1,024
204.223.40.0/24 256
204.223.41.0/24 256
204.223.42.0/23 512
204.223.44.0/22 1,024
204.223.75.0/24 256
204.223.78.0/23 512
204.223.80.0/24 256
204.223.81.0/24 256
204.223.82.0/23 512
204.223.84.0/22 1,024
204.223.88.0/22 1,024
204.223.92.0/23 512
204.223.94.0/24 256
204.223.96.0/20 4,096
204.223.112.0/21 2,048
204.223.126.0/23 512
204.223.128.0/21 2,048
204.223.136.0/21 2,048
204.223.144.0/21 2,048
204.223.152.0/22 1,024
204.223.176.0/24 256
205.109.0.0/23 512
205.109.4.0/22 1,024
205.109.8.0/23 512
205.109.12.0/23 512
205.109.14.0/24 256
205.109.16.0/24 256
205.109.17.0/24 256
205.109.20.0/23 512
205.109.28.0/23 512
205.109.48.0/23 512
205.109.51.0/24 256
205.109.53.0/24 256
205.109.54.0/23 512
205.109.64.0/24 256
205.109.69.0/24 256
205.109.80.0/21 2,048
205.109.88.0/21 2,048
205.109.96.0/21 2,048
205.109.104.0/22 1,024
205.109.108.0/23 512
205.109.110.0/24 256
205.109.111.0/24 256
205.109.112.0/21 2,048
205.109.120.0/22 1,024
205.109.124.0/23 512
205.109.126.0/23 512
205.109.128.0/19 8,192
205.109.160.0/19 8,192
205.109.192.0/20 4,096
205.109.208.0/20 4,096
205.109.224.0/19 8,192
205.110.0.0/20 4,096
205.110.16.0/20 4,096
205.110.36.0/23 512
205.110.39.0/24 256
205.110.50.0/23 512
205.110.55.0/24 256
205.110.56.0/24 256
205.110.57.0/24 256
205.110.58.0/24 256
205.110.59.0/24 256
205.110.60.0/24 256
205.110.61.0/24 256
205.110.62.0/24 256
205.110.63.0/24 256
205.110.68.0/24 256
205.110.69.0/24 256
205.110.70.0/24 256
205.110.74.0/23 512
205.110.76.0/22 1,024
205.110.86.0/24 256
205.110.95.0/24 256
205.110.104.0/22 1,024
205.110.110.0/23 512
205.110.116.0/23 512
205.110.137.0/24 256
205.110.140.0/23 512
205.110.187.0/24 256
205.110.188.0/24 256
205.110.192.0/24 256
205.110.193.0/24 256
205.110.194.0/24 256
205.110.195.0/24 256
205.110.196.0/24 256
205.110.197.0/24 256
205.110.198.0/23 512
205.110.200.0/21 2,048
205.110.218.0/24 256
205.110.224.0/20 4,096
205.110.240.0/24 256
205.110.242.0/24 256
205.110.244.0/23 512
205.110.247.0/24 256
205.110.248.0/23 512
205.110.250.0/23 512
205.110.252.0/22 1,024
214.15.10.0/24 256
214.15.20.0/24 256
214.15.30.0/24 256
214.15.60.0/24 256
214.15.70.0/24 256
214.43.0.0/24 256
214.43.1.0/24 256
214.43.2.0/24 256
214.43.3.0/24 256
214.43.4.0/22 1,024
214.43.8.0/24 256
214.43.9.0/24 256
214.43.10.0/24 256
214.43.11.0/24 256
214.43.12.0/22 1,024
214.43.16.0/23 512
214.43.18.0/24 256
214.43.19.0/24 256
214.43.20.0/24 256
214.43.21.0/24 256
214.43.22.0/23 512
214.43.24.0/22 1,024
214.43.28.0/23 512
214.43.30.0/24 256
214.43.31.0/24 256
214.43.32.0/24 256
214.43.50.0/24 256
214.43.51.0/24 256
214.43.52.0/24 256
214.43.53.0/24 256
214.43.60.0/23 512
214.43.62.0/23 512
214.43.70.0/23 512
214.43.80.0/23 512
214.43.92.0/22 1,024
214.43.105.0/24 256
214.43.128.0/24 256
214.43.129.0/24 256
214.43.132.0/22 1,024
214.43.136.0/24 256
214.43.144.0/21 2,048
214.43.152.0/23 512
214.43.154.0/23 512
214.43.156.0/22 1,024
214.43.160.0/24 256
214.43.161.0/24 256
214.43.162.0/24 256
214.43.163.0/24 256
214.43.164.0/24 256
214.43.166.0/24 256
214.43.167.0/24 256
214.43.168.0/21 2,048
214.43.176.0/23 512
214.43.178.0/24 256
214.43.179.0/24 256
214.43.180.0/23 512
214.43.182.0/24 256
214.43.183.0/24 256
214.43.184.0/22 1,024
214.43.188.0/23 512
214.43.190.0/23 512
214.43.192.0/23 512
214.43.200.0/22 1,024
214.43.204.0/22 1,024
214.43.208.0/20 4,096
214.43.224.0/20 4,096
214.43.240.0/21 2,048
214.43.249.0/24 256
214.43.250.0/24 256
214.43.251.0/24 256
214.43.252.0/24 256
214.43.253.0/24 256
214.44.32.0/19 8,192
214.44.80.0/24 256
214.44.81.0/24 256
214.44.82.0/24 256
214.44.83.0/24 256
214.44.84.0/24 256
214.44.85.0/24 256
214.44.86.0/24 256
214.44.87.0/24 256
214.44.130.0/24 256
214.44.136.0/24 256
214.44.143.0/24 256
214.44.144.0/20 4,096
214.44.160.0/19 8,192
214.44.192.0/18 16,384
214.45.224.0/20 4,096
214.45.240.0/23 512
214.45.242.0/24 256
214.45.243.0/24 256
214.45.244.0/23 512
214.45.246.0/24 256
214.45.247.0/24 256
214.45.248.0/24 256
214.45.251.0/24 256
214.45.252.0/22 1,024
214.52.0.0/22 1,024

Show more IP address ranges »

There are no IPv6 ranges available for this ASN.

Geographic Distribution (IPv4)

United States of America
 100%

Usage & Classification (IPv4)

(MIL) Military

100%

Military (MIL)

Military networks are exclusively operated by defense organizations for secure communications and classified infrastructure. Given the sensitive nature of defense operations, these IPs are governed by stringent access controls and high-level security protocols.

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