Dashboard / ASN Lookup / AS637

AS637

United States Department of Defense (DoD)

ARIN US active Announced
More ASNs in the United States →
Organization
United States Department of Defense (DoD)
DNIC-ASBLK-00616-00665
Registered
Apr 19, 1990
36 years ago
IPv4 Prefixes
527
929,536 addresses
IPv6 Prefixes
0
BGP Neighbours
3
3 upstream/peer · 0 downstream

Registration

AS Number AS637 Registered Block AS616 – AS665 AS Name DNIC-ASBLK-00616-00665 Handle AS616 Organization United States Department of Defense (DoD) Organization ID USDDD Address 3990 E. Broad Street, Columbus, OH, 43218, United States Country United States (US) Registry ARIN Allocated Apr 19, 1990 Record Created Apr 19, 1990 Last Updated Sep 12, 2025 Status
active
WHOIS Server whois.arin.net AS Description DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD), US Abuse Email [email protected] Abuse Phone +1-844-347-2457;ext2

IPv4 Prefixes

527 prefixes · 929,536 addresses · 325 top-level Routing data as of 2026-10-07 08:00 UTC

137.0.0.0/8 · 43 prefixes · 18,176 addresses
PrefixRangeAddresses
137.232.161.0/24137.232.161.0 – 137.232.161.255256
137.232.194.0/24137.232.194.0 – 137.232.194.255256
137.233.5.0/24137.233.5.0 – 137.233.5.255256
137.234.0.0/24137.234.0.0 – 137.234.0.255256
137.234.2.0/23137.234.2.0 – 137.234.3.255512
137.234.8.0/22137.234.8.0 – 137.234.11.2551,024
137.234.26.0/24137.234.26.0 – 137.234.26.255256
137.234.64.0/22137.234.64.0 – 137.234.67.2551,024
137.234.77.0/24137.234.77.0 – 137.234.77.255256
137.234.80.0/22137.234.80.0 – 137.234.83.2551,024
137.234.84.0/24137.234.84.0 – 137.234.84.255256
137.234.86.0/24137.234.86.0 – 137.234.86.255256
137.234.110.0/24137.234.110.0 – 137.234.110.255256
137.234.139.0/24137.234.139.0 – 137.234.139.255256
137.234.140.0/24137.234.140.0 – 137.234.140.255256
137.234.156.0/22137.234.156.0 – 137.234.159.2551,024
137.234.160.0/22137.234.160.0 – 137.234.163.2551,024
137.234.164.0/22137.234.164.0 – 137.234.167.2551,024
137.234.178.0/24137.234.178.0 – 137.234.178.255256
137.234.181.0/24137.234.181.0 – 137.234.181.255256
137.234.182.0/24137.234.182.0 – 137.234.182.255256
137.234.183.0/24137.234.183.0 – 137.234.183.255256
137.234.186.0/24137.234.186.0 – 137.234.186.255256
137.234.200.0/22137.234.200.0 – 137.234.203.2551,024
137.234.204.0/24137.234.204.0 – 137.234.204.255256
137.234.206.0/24137.234.206.0 – 137.234.206.255256
137.234.208.0/24137.234.208.0 – 137.234.208.255256
137.234.249.0/24137.234.249.0 – 137.234.249.255256
137.235.4.0/24137.235.4.0 – 137.235.4.255256
137.235.123.0/24137.235.123.0 – 137.235.123.255256
137.235.126.0/23137.235.126.0 – 137.235.127.255512
137.235.128.0/22137.235.128.0 – 137.235.131.2551,024
137.235.130.0/24137.235.130.0 – 137.235.130.255256
137.235.133.0/24137.235.133.0 – 137.235.133.255256
137.235.141.0/24137.235.141.0 – 137.235.141.255256
137.235.142.0/24137.235.142.0 – 137.235.142.255256
137.235.143.0/24137.235.143.0 – 137.235.143.255256
137.235.148.0/24137.235.148.0 – 137.235.148.255256
137.235.172.0/24137.235.172.0 – 137.235.172.255256
137.235.200.0/24137.235.200.0 – 137.235.200.255256
137.235.202.0/24137.235.202.0 – 137.235.202.255256
137.235.210.0/24137.235.210.0 – 137.235.210.255256
137.235.236.0/22137.235.236.0 – 137.235.239.2551,024
138.0.0.0/8 · 81 prefixes · 259,584 addresses
PrefixRangeAddresses
138.156.0.0/16138.156.0.0 – 138.156.255.25565,536
138.156.232.0/23138.156.232.0 – 138.156.233.255512
138.156.248.0/21138.156.248.0 – 138.156.255.2552,048
138.157.0.0/19138.157.0.0 – 138.157.31.2558,192
138.157.57.0/24138.157.57.0 – 138.157.57.255256
138.157.64.0/23138.157.64.0 – 138.157.65.255512
138.157.84.0/23138.157.84.0 – 138.157.85.255512
138.157.105.0/24138.157.105.0 – 138.157.105.255256
138.157.106.0/23138.157.106.0 – 138.157.107.255512
138.157.110.0/24138.157.110.0 – 138.157.110.255256
138.157.112.0/23138.157.112.0 – 138.157.113.255512
138.157.114.0/24138.157.114.0 – 138.157.114.255256
138.157.115.0/24138.157.115.0 – 138.157.115.255256
138.157.119.0/24138.157.119.0 – 138.157.119.255256
138.157.122.0/24138.157.122.0 – 138.157.122.255256
138.157.124.0/23138.157.124.0 – 138.157.125.255512
138.157.130.0/24138.157.130.0 – 138.157.130.255256
138.157.131.0/24138.157.131.0 – 138.157.131.255256
138.157.207.0/24138.157.207.0 – 138.157.207.255256
138.157.210.0/23138.157.210.0 – 138.157.211.255512
138.157.216.0/24138.157.216.0 – 138.157.216.255256
138.157.240.0/24138.157.240.0 – 138.157.240.255256
138.158.0.0/16138.158.0.0 – 138.158.255.25565,536
138.163.160.0/22138.163.160.0 – 138.163.163.2551,024
138.167.0.0/20138.167.0.0 – 138.167.15.2554,096
138.167.20.0/23138.167.20.0 – 138.167.21.255512
138.167.32.0/21138.167.32.0 – 138.167.39.2552,048
138.167.40.0/22138.167.40.0 – 138.167.43.2551,024
138.167.44.0/22138.167.44.0 – 138.167.47.2551,024
138.167.48.0/20138.167.48.0 – 138.167.63.2554,096
138.167.64.0/24138.167.64.0 – 138.167.64.255256
138.167.65.0/24138.167.65.0 – 138.167.65.255256
138.167.66.0/24138.167.66.0 – 138.167.66.255256
138.167.67.0/24138.167.67.0 – 138.167.67.255256
138.167.68.0/24138.167.68.0 – 138.167.68.255256
138.167.69.0/24138.167.69.0 – 138.167.69.255256
138.167.70.0/24138.167.70.0 – 138.167.70.255256
138.167.71.0/24138.167.71.0 – 138.167.71.255256
138.167.72.0/24138.167.72.0 – 138.167.72.255256
138.167.73.0/24138.167.73.0 – 138.167.73.255256
138.167.74.0/24138.167.74.0 – 138.167.74.255256
138.167.75.0/24138.167.75.0 – 138.167.75.255256
138.167.76.0/24138.167.76.0 – 138.167.76.255256
138.167.77.0/24138.167.77.0 – 138.167.77.255256
138.167.78.0/24138.167.78.0 – 138.167.78.255256
138.167.79.0/24138.167.79.0 – 138.167.79.255256
138.167.80.0/24138.167.80.0 – 138.167.80.255256
138.167.81.0/24138.167.81.0 – 138.167.81.255256
138.167.82.0/24138.167.82.0 – 138.167.82.255256
138.167.83.0/24138.167.83.0 – 138.167.83.255256
138.167.84.0/24138.167.84.0 – 138.167.84.255256
138.167.85.0/24138.167.85.0 – 138.167.85.255256
138.167.104.0/22138.167.104.0 – 138.167.107.2551,024
138.167.108.0/22138.167.108.0 – 138.167.111.2551,024
138.167.112.0/23138.167.112.0 – 138.167.113.255512
138.167.119.0/24138.167.119.0 – 138.167.119.255256
138.167.120.0/21138.167.120.0 – 138.167.127.2552,048
138.167.128.0/23138.167.128.0 – 138.167.129.255512
138.167.130.0/23138.167.130.0 – 138.167.131.255512
138.167.132.0/23138.167.132.0 – 138.167.133.255512
138.167.134.0/23138.167.134.0 – 138.167.135.255512
138.167.136.0/23138.167.136.0 – 138.167.137.255512
138.167.138.0/23138.167.138.0 – 138.167.139.255512
138.167.140.0/22138.167.140.0 – 138.167.143.2551,024
138.167.144.0/20138.167.144.0 – 138.167.159.2554,096
138.167.160.0/21138.167.160.0 – 138.167.167.2552,048
138.167.176.0/20138.167.176.0 – 138.167.191.2554,096
138.167.200.0/22138.167.200.0 – 138.167.203.2551,024
138.167.206.0/24138.167.206.0 – 138.167.206.255256
138.167.208.0/20138.167.208.0 – 138.167.223.2554,096
138.167.224.0/21138.167.224.0 – 138.167.231.2552,048
138.167.232.0/24138.167.232.0 – 138.167.232.255256
138.167.235.0/24138.167.235.0 – 138.167.235.255256
138.167.236.0/22138.167.236.0 – 138.167.239.2551,024
138.167.248.0/22138.167.248.0 – 138.167.251.2551,024
138.168.0.0/16138.168.0.0 – 138.168.255.25565,536
138.168.14.0/23138.168.14.0 – 138.168.15.255512
138.168.183.0/24138.168.183.0 – 138.168.183.255256
138.168.190.0/23138.168.190.0 – 138.168.191.255512
138.168.192.0/23138.168.192.0 – 138.168.193.255512
138.168.194.0/24138.168.194.0 – 138.168.194.255256
158.0.0.0/8 · 211 prefixes · 454,912 addresses
PrefixRangeAddresses
158.236.0.0/17158.236.0.0 – 158.236.127.25532,768
158.236.128.0/17158.236.128.0 – 158.236.255.25532,768
158.237.0.0/16158.237.0.0 – 158.237.255.25565,536
158.238.0.0/16158.238.0.0 – 158.238.255.25565,536
158.239.0.0/20158.239.0.0 – 158.239.15.2554,096
158.239.32.0/19158.239.32.0 – 158.239.63.2558,192
158.239.64.0/18158.239.64.0 – 158.239.127.25516,384
158.239.128.0/17158.239.128.0 – 158.239.255.25532,768
158.239.144.0/22158.239.144.0 – 158.239.147.2551,024
158.239.161.0/24158.239.161.0 – 158.239.161.255256
158.239.168.0/23158.239.168.0 – 158.239.169.255512
158.239.170.0/23158.239.170.0 – 158.239.171.255512
158.239.174.0/23158.239.174.0 – 158.239.175.255512
158.239.176.0/22158.239.176.0 – 158.239.179.2551,024
158.239.180.0/22158.239.180.0 – 158.239.183.2551,024
158.239.188.0/22158.239.188.0 – 158.239.191.2551,024
158.239.192.0/18158.239.192.0 – 158.239.255.25516,384
158.240.0.0/23158.240.0.0 – 158.240.1.255512
158.240.2.0/23158.240.2.0 – 158.240.3.255512
158.240.4.0/24158.240.4.0 – 158.240.4.255256
158.240.32.0/20158.240.32.0 – 158.240.47.2554,096
158.240.48.0/22158.240.48.0 – 158.240.51.2551,024
158.240.52.0/23158.240.52.0 – 158.240.53.255512
158.240.54.0/24158.240.54.0 – 158.240.54.255256
158.240.58.0/24158.240.58.0 – 158.240.58.255256
158.240.96.0/23158.240.96.0 – 158.240.97.255512
158.240.131.0/24158.240.131.0 – 158.240.131.255256
158.240.132.0/24158.240.132.0 – 158.240.132.255256
158.240.133.0/24158.240.133.0 – 158.240.133.255256
158.240.134.0/24158.240.134.0 – 158.240.134.255256
158.240.135.0/24158.240.135.0 – 158.240.135.255256
158.240.136.0/24158.240.136.0 – 158.240.136.255256
158.240.137.0/24158.240.137.0 – 158.240.137.255256
158.240.160.0/22158.240.160.0 – 158.240.163.2551,024
158.240.164.0/22158.240.164.0 – 158.240.167.2551,024
158.240.174.0/24158.240.174.0 – 158.240.174.255256
158.240.175.0/24158.240.175.0 – 158.240.175.255256
158.240.180.0/24158.240.180.0 – 158.240.180.255256
158.240.183.0/24158.240.183.0 – 158.240.183.255256
158.240.198.0/24158.240.198.0 – 158.240.198.255256
158.240.210.0/24158.240.210.0 – 158.240.210.255256
158.240.211.0/24158.240.211.0 – 158.240.211.255256
158.240.212.0/24158.240.212.0 – 158.240.212.255256
158.240.216.0/23158.240.216.0 – 158.240.217.255512
158.240.226.0/23158.240.226.0 – 158.240.227.255512
158.240.242.0/23158.240.242.0 – 158.240.243.255512
158.240.244.0/22158.240.244.0 – 158.240.247.2551,024
158.240.248.0/24158.240.248.0 – 158.240.248.255256
158.243.0.0/16158.243.0.0 – 158.243.255.25565,536
158.243.7.0/24158.243.7.0 – 158.243.7.255256
158.243.13.0/24158.243.13.0 – 158.243.13.255256
158.243.15.0/24158.243.15.0 – 158.243.15.255256
158.243.16.0/21158.243.16.0 – 158.243.23.2552,048
158.243.20.0/24158.243.20.0 – 158.243.20.255256
158.243.32.0/24158.243.32.0 – 158.243.32.255256
158.243.33.0/24158.243.33.0 – 158.243.33.255256
158.243.34.0/24158.243.34.0 – 158.243.34.255256
158.243.36.0/24158.243.36.0 – 158.243.36.255256
158.243.37.0/24158.243.37.0 – 158.243.37.255256
158.243.38.0/24158.243.38.0 – 158.243.38.255256
158.243.39.0/24158.243.39.0 – 158.243.39.255256
158.243.40.0/24158.243.40.0 – 158.243.40.255256
158.243.41.0/24158.243.41.0 – 158.243.41.255256
158.243.42.0/24158.243.42.0 – 158.243.42.255256
158.243.43.0/24158.243.43.0 – 158.243.43.255256
158.243.44.0/24158.243.44.0 – 158.243.44.255256
158.243.45.0/24158.243.45.0 – 158.243.45.255256
158.243.46.0/23158.243.46.0 – 158.243.47.255512
158.243.48.0/24158.243.48.0 – 158.243.48.255256
158.243.49.0/24158.243.49.0 – 158.243.49.255256
158.243.51.0/24158.243.51.0 – 158.243.51.255256
158.243.52.0/24158.243.52.0 – 158.243.52.255256
158.243.54.0/24158.243.54.0 – 158.243.54.255256
158.243.55.0/24158.243.55.0 – 158.243.55.255256
158.243.56.0/24158.243.56.0 – 158.243.56.255256
158.243.57.0/24158.243.57.0 – 158.243.57.255256
158.243.58.0/24158.243.58.0 – 158.243.58.255256
158.243.60.0/24158.243.60.0 – 158.243.60.255256
158.243.61.0/24158.243.61.0 – 158.243.61.255256
158.243.62.0/24158.243.62.0 – 158.243.62.255256
158.243.63.0/24158.243.63.0 – 158.243.63.255256
158.243.65.0/24158.243.65.0 – 158.243.65.255256
158.243.66.0/24158.243.66.0 – 158.243.66.255256
158.243.67.0/24158.243.67.0 – 158.243.67.255256
158.243.68.0/24158.243.68.0 – 158.243.68.255256
158.243.69.0/24158.243.69.0 – 158.243.69.255256
158.243.70.0/24158.243.70.0 – 158.243.70.255256
158.243.71.0/24158.243.71.0 – 158.243.71.255256
158.243.72.0/23158.243.72.0 – 158.243.73.255512
158.243.74.0/24158.243.74.0 – 158.243.74.255256
158.243.75.0/24158.243.75.0 – 158.243.75.255256
158.243.76.0/24158.243.76.0 – 158.243.76.255256
158.243.77.0/24158.243.77.0 – 158.243.77.255256
158.243.78.0/24158.243.78.0 – 158.243.78.255256
158.243.80.0/24158.243.80.0 – 158.243.80.255256
158.243.81.0/24158.243.81.0 – 158.243.81.255256
158.243.82.0/24158.243.82.0 – 158.243.82.255256
158.243.83.0/24158.243.83.0 – 158.243.83.255256
158.243.84.0/24158.243.84.0 – 158.243.84.255256
158.243.85.0/24158.243.85.0 – 158.243.85.255256
158.243.86.0/24158.243.86.0 – 158.243.86.255256
158.243.87.0/24158.243.87.0 – 158.243.87.255256
158.243.88.0/24158.243.88.0 – 158.243.88.255256
158.243.89.0/24158.243.89.0 – 158.243.89.255256
158.243.90.0/24158.243.90.0 – 158.243.90.255256
158.243.91.0/24158.243.91.0 – 158.243.91.255256
158.243.92.0/24158.243.92.0 – 158.243.92.255256
158.243.93.0/24158.243.93.0 – 158.243.93.255256
158.243.94.0/24158.243.94.0 – 158.243.94.255256
158.243.96.0/24158.243.96.0 – 158.243.96.255256
158.243.98.0/24158.243.98.0 – 158.243.98.255256
158.243.99.0/24158.243.99.0 – 158.243.99.255256
158.243.100.0/24158.243.100.0 – 158.243.100.255256
158.243.101.0/24158.243.101.0 – 158.243.101.255256
158.243.102.0/24158.243.102.0 – 158.243.102.255256
158.243.103.0/24158.243.103.0 – 158.243.103.255256
158.243.104.0/24158.243.104.0 – 158.243.104.255256
158.243.105.0/24158.243.105.0 – 158.243.105.255256
158.243.106.0/24158.243.106.0 – 158.243.106.255256
158.243.108.0/23158.243.108.0 – 158.243.109.255512
158.243.110.0/24158.243.110.0 – 158.243.110.255256
158.243.111.0/24158.243.111.0 – 158.243.111.255256
158.243.113.0/24158.243.113.0 – 158.243.113.255256
158.243.114.0/24158.243.114.0 – 158.243.114.255256
158.243.115.0/24158.243.115.0 – 158.243.115.255256
158.243.116.0/24158.243.116.0 – 158.243.116.255256
158.243.117.0/24158.243.117.0 – 158.243.117.255256
158.243.118.0/24158.243.118.0 – 158.243.118.255256
158.243.119.0/24158.243.119.0 – 158.243.119.255256
158.243.120.0/24158.243.120.0 – 158.243.120.255256
158.243.121.0/24158.243.121.0 – 158.243.121.255256
158.243.122.0/24158.243.122.0 – 158.243.122.255256
158.243.123.0/24158.243.123.0 – 158.243.123.255256
158.243.124.0/23158.243.124.0 – 158.243.125.255512
158.243.126.0/24158.243.126.0 – 158.243.126.255256
158.243.127.0/24158.243.127.0 – 158.243.127.255256
158.243.128.0/24158.243.128.0 – 158.243.128.255256
158.243.129.0/24158.243.129.0 – 158.243.129.255256
158.243.130.0/23158.243.130.0 – 158.243.131.255512
158.243.132.0/24158.243.132.0 – 158.243.132.255256
158.243.133.0/24158.243.133.0 – 158.243.133.255256
158.243.134.0/24158.243.134.0 – 158.243.134.255256
158.243.136.0/24158.243.136.0 – 158.243.136.255256
158.243.139.0/24158.243.139.0 – 158.243.139.255256
158.243.140.0/24158.243.140.0 – 158.243.140.255256
158.243.141.0/24158.243.141.0 – 158.243.141.255256
158.243.142.0/24158.243.142.0 – 158.243.142.255256
158.243.144.0/24158.243.144.0 – 158.243.144.255256
158.243.146.0/24158.243.146.0 – 158.243.146.255256
158.243.147.0/24158.243.147.0 – 158.243.147.255256
158.243.148.0/24158.243.148.0 – 158.243.148.255256
158.243.149.0/24158.243.149.0 – 158.243.149.255256
158.243.150.0/24158.243.150.0 – 158.243.150.255256
158.243.151.0/24158.243.151.0 – 158.243.151.255256
158.243.152.0/24158.243.152.0 – 158.243.152.255256
158.243.153.0/24158.243.153.0 – 158.243.153.255256
158.243.154.0/24158.243.154.0 – 158.243.154.255256
158.243.155.0/24158.243.155.0 – 158.243.155.255256
158.243.156.0/24158.243.156.0 – 158.243.156.255256
158.243.157.0/24158.243.157.0 – 158.243.157.255256
158.243.158.0/24158.243.158.0 – 158.243.158.255256
158.243.159.0/24158.243.159.0 – 158.243.159.255256
158.243.160.0/24158.243.160.0 – 158.243.160.255256
158.243.161.0/24158.243.161.0 – 158.243.161.255256
158.243.162.0/24158.243.162.0 – 158.243.162.255256
158.243.163.0/24158.243.163.0 – 158.243.163.255256
158.243.164.0/24158.243.164.0 – 158.243.164.255256
158.243.166.0/24158.243.166.0 – 158.243.166.255256
158.243.167.0/24158.243.167.0 – 158.243.167.255256
158.243.168.0/24158.243.168.0 – 158.243.168.255256
158.243.169.0/24158.243.169.0 – 158.243.169.255256
158.243.170.0/24158.243.170.0 – 158.243.170.255256
158.243.171.0/24158.243.171.0 – 158.243.171.255256
158.243.173.0/24158.243.173.0 – 158.243.173.255256
158.243.174.0/23158.243.174.0 – 158.243.175.255512
158.243.176.0/24158.243.176.0 – 158.243.176.255256
158.243.178.0/24158.243.178.0 – 158.243.178.255256
158.243.180.0/24158.243.180.0 – 158.243.180.255256
158.243.182.0/23158.243.182.0 – 158.243.183.255512
158.243.184.0/21158.243.184.0 – 158.243.191.2552,048
158.243.192.0/24158.243.192.0 – 158.243.192.255256
158.243.193.0/24158.243.193.0 – 158.243.193.255256
158.243.194.0/24158.243.194.0 – 158.243.194.255256
158.243.196.0/24158.243.196.0 – 158.243.196.255256
158.243.198.0/24158.243.198.0 – 158.243.198.255256
158.243.200.0/24158.243.200.0 – 158.243.200.255256
158.243.201.0/24158.243.201.0 – 158.243.201.255256
158.243.203.0/24158.243.203.0 – 158.243.203.255256
158.243.204.0/24158.243.204.0 – 158.243.204.255256
158.243.205.0/24158.243.205.0 – 158.243.205.255256
158.243.206.0/23158.243.206.0 – 158.243.207.255512
158.243.208.0/23158.243.208.0 – 158.243.209.255512
158.243.210.0/24158.243.210.0 – 158.243.210.255256
158.243.211.0/24158.243.211.0 – 158.243.211.255256
158.243.212.0/24158.243.212.0 – 158.243.212.255256
158.243.214.0/24158.243.214.0 – 158.243.214.255256
158.243.216.0/23158.243.216.0 – 158.243.217.255512
158.243.219.0/24158.243.219.0 – 158.243.219.255256
158.243.220.0/24158.243.220.0 – 158.243.220.255256
158.243.221.0/24158.243.221.0 – 158.243.221.255256
158.243.222.0/24158.243.222.0 – 158.243.222.255256
158.243.223.0/24158.243.223.0 – 158.243.223.255256
158.243.224.0/24158.243.224.0 – 158.243.224.255256
158.243.225.0/24158.243.225.0 – 158.243.225.255256
158.243.226.0/24158.243.226.0 – 158.243.226.255256
158.243.238.0/24158.243.238.0 – 158.243.238.255256
158.244.0.0/18158.244.0.0 – 158.244.63.25516,384
158.244.64.0/18158.244.64.0 – 158.244.127.25516,384
158.244.128.0/18158.244.128.0 – 158.244.191.25516,384
158.245.0.0/16158.245.0.0 – 158.245.255.25565,536
158.245.128.0/18158.245.128.0 – 158.245.191.25516,384
192.0.0.0/8 · 3 prefixes · 1,024 addresses
PrefixRangeAddresses
192.156.21.0/24192.156.21.0 – 192.156.21.255256
192.156.56.0/23192.156.56.0 – 192.156.57.255512
192.156.79.0/24192.156.79.0 – 192.156.79.255256
204.0.0.0/8 · 24 prefixes · 24,320 addresses
PrefixRangeAddresses
204.223.8.0/21204.223.8.0 – 204.223.15.2552,048
204.223.34.0/23204.223.34.0 – 204.223.35.255512
204.223.36.0/22204.223.36.0 – 204.223.39.2551,024
204.223.40.0/24204.223.40.0 – 204.223.40.255256
204.223.41.0/24204.223.41.0 – 204.223.41.255256
204.223.42.0/23204.223.42.0 – 204.223.43.255512
204.223.44.0/22204.223.44.0 – 204.223.47.2551,024
204.223.75.0/24204.223.75.0 – 204.223.75.255256
204.223.78.0/23204.223.78.0 – 204.223.79.255512
204.223.80.0/24204.223.80.0 – 204.223.80.255256
204.223.81.0/24204.223.81.0 – 204.223.81.255256
204.223.82.0/23204.223.82.0 – 204.223.83.255512
204.223.84.0/22204.223.84.0 – 204.223.87.2551,024
204.223.88.0/22204.223.88.0 – 204.223.91.2551,024
204.223.92.0/23204.223.92.0 – 204.223.93.255512
204.223.94.0/24204.223.94.0 – 204.223.94.255256
204.223.96.0/20204.223.96.0 – 204.223.111.2554,096
204.223.112.0/21204.223.112.0 – 204.223.119.2552,048
204.223.126.0/23204.223.126.0 – 204.223.127.255512
204.223.128.0/21204.223.128.0 – 204.223.135.2552,048
204.223.136.0/21204.223.136.0 – 204.223.143.2552,048
204.223.144.0/21204.223.144.0 – 204.223.151.2552,048
204.223.152.0/22204.223.152.0 – 204.223.155.2551,024
204.223.176.0/24204.223.176.0 – 204.223.176.255256
205.0.0.0/8 · 71 prefixes · 81,152 addresses
PrefixRangeAddresses
205.109.0.0/23205.109.0.0 – 205.109.1.255512
205.109.4.0/22205.109.4.0 – 205.109.7.2551,024
205.109.8.0/23205.109.8.0 – 205.109.9.255512
205.109.12.0/23205.109.12.0 – 205.109.13.255512
205.109.14.0/24205.109.14.0 – 205.109.14.255256
205.109.16.0/24205.109.16.0 – 205.109.16.255256
205.109.17.0/24205.109.17.0 – 205.109.17.255256
205.109.20.0/23205.109.20.0 – 205.109.21.255512
205.109.28.0/23205.109.28.0 – 205.109.29.255512
205.109.48.0/23205.109.48.0 – 205.109.49.255512
205.109.51.0/24205.109.51.0 – 205.109.51.255256
205.109.53.0/24205.109.53.0 – 205.109.53.255256
205.109.54.0/23205.109.54.0 – 205.109.55.255512
205.109.64.0/24205.109.64.0 – 205.109.64.255256
205.109.69.0/24205.109.69.0 – 205.109.69.255256
205.109.80.0/21205.109.80.0 – 205.109.87.2552,048
205.109.88.0/21205.109.88.0 – 205.109.95.2552,048
205.109.96.0/21205.109.96.0 – 205.109.103.2552,048
205.109.104.0/21205.109.104.0 – 205.109.111.2552,048
205.109.110.0/24205.109.110.0 – 205.109.110.255256
205.109.112.0/20205.109.112.0 – 205.109.127.2554,096
205.109.126.0/23205.109.126.0 – 205.109.127.255512
205.109.128.0/19205.109.128.0 – 205.109.159.2558,192
205.109.160.0/19205.109.160.0 – 205.109.191.2558,192
205.109.192.0/19205.109.192.0 – 205.109.223.2558,192
205.109.192.0/20205.109.192.0 – 205.109.207.2554,096
205.109.208.0/20205.109.208.0 – 205.109.223.2554,096
205.109.224.0/19205.109.224.0 – 205.109.255.2558,192
205.110.0.0/20205.110.0.0 – 205.110.15.2554,096
205.110.16.0/20205.110.16.0 – 205.110.31.2554,096
205.110.36.0/23205.110.36.0 – 205.110.37.255512
205.110.39.0/24205.110.39.0 – 205.110.39.255256
205.110.50.0/23205.110.50.0 – 205.110.51.255512
205.110.55.0/24205.110.55.0 – 205.110.55.255256
205.110.56.0/22205.110.56.0 – 205.110.59.2551,024
205.110.57.0/24205.110.57.0 – 205.110.57.255256
205.110.58.0/24205.110.58.0 – 205.110.58.255256
205.110.60.0/24205.110.60.0 – 205.110.60.255256
205.110.61.0/24205.110.61.0 – 205.110.61.255256
205.110.62.0/24205.110.62.0 – 205.110.62.255256
205.110.63.0/24205.110.63.0 – 205.110.63.255256
205.110.68.0/24205.110.68.0 – 205.110.68.255256
205.110.69.0/24205.110.69.0 – 205.110.69.255256
205.110.70.0/24205.110.70.0 – 205.110.70.255256
205.110.74.0/23205.110.74.0 – 205.110.75.255512
205.110.76.0/22205.110.76.0 – 205.110.79.2551,024
205.110.86.0/24205.110.86.0 – 205.110.86.255256
205.110.95.0/24205.110.95.0 – 205.110.95.255256
205.110.104.0/22205.110.104.0 – 205.110.107.2551,024
205.110.110.0/23205.110.110.0 – 205.110.111.255512
205.110.116.0/23205.110.116.0 – 205.110.117.255512
205.110.137.0/24205.110.137.0 – 205.110.137.255256
205.110.140.0/23205.110.140.0 – 205.110.141.255512
205.110.187.0/24205.110.187.0 – 205.110.187.255256
205.110.188.0/24205.110.188.0 – 205.110.188.255256
205.110.192.0/22205.110.192.0 – 205.110.195.2551,024
205.110.193.0/24205.110.193.0 – 205.110.193.255256
205.110.194.0/24205.110.194.0 – 205.110.194.255256
205.110.196.0/24205.110.196.0 – 205.110.196.255256
205.110.197.0/24205.110.197.0 – 205.110.197.255256
205.110.198.0/23205.110.198.0 – 205.110.199.255512
205.110.200.0/21205.110.200.0 – 205.110.207.2552,048
205.110.218.0/24205.110.218.0 – 205.110.218.255256
205.110.224.0/20205.110.224.0 – 205.110.239.2554,096
205.110.240.0/24205.110.240.0 – 205.110.240.255256
205.110.242.0/24205.110.242.0 – 205.110.242.255256
205.110.244.0/23205.110.244.0 – 205.110.245.255512
205.110.247.0/24205.110.247.0 – 205.110.247.255256
205.110.248.0/23205.110.248.0 – 205.110.249.255512
205.110.250.0/23205.110.250.0 – 205.110.251.255512
205.110.252.0/22205.110.252.0 – 205.110.255.2551,024
214.0.0.0/8 · 94 prefixes · 90,368 addresses
PrefixRangeAddresses
214.15.10.0/24214.15.10.0 – 214.15.10.255256
214.15.20.0/24214.15.20.0 – 214.15.20.255256
214.15.30.0/24214.15.30.0 – 214.15.30.255256
214.15.60.0/24214.15.60.0 – 214.15.60.255256
214.15.70.0/24214.15.70.0 – 214.15.70.255256
214.43.0.0/21214.43.0.0 – 214.43.7.2552,048
214.43.1.0/24214.43.1.0 – 214.43.1.255256
214.43.3.0/24214.43.3.0 – 214.43.3.255256
214.43.8.0/21214.43.8.0 – 214.43.15.2552,048
214.43.8.0/24214.43.8.0 – 214.43.8.255256
214.43.10.0/24214.43.10.0 – 214.43.10.255256
214.43.11.0/24214.43.11.0 – 214.43.11.255256
214.43.16.0/22214.43.16.0 – 214.43.19.2551,024
214.43.19.0/24214.43.19.0 – 214.43.19.255256
214.43.20.0/22214.43.20.0 – 214.43.23.2551,024
214.43.20.0/24214.43.20.0 – 214.43.20.255256
214.43.21.0/24214.43.21.0 – 214.43.21.255256
214.43.24.0/21214.43.24.0 – 214.43.31.2552,048
214.43.30.0/24214.43.30.0 – 214.43.30.255256
214.43.31.0/24214.43.31.0 – 214.43.31.255256
214.43.32.0/24214.43.32.0 – 214.43.32.255256
214.43.50.0/23214.43.50.0 – 214.43.51.255512
214.43.50.0/24214.43.50.0 – 214.43.50.255256
214.43.52.0/23214.43.52.0 – 214.43.53.255512
214.43.52.0/24214.43.52.0 – 214.43.52.255256
214.43.60.0/22214.43.60.0 – 214.43.63.2551,024
214.43.60.0/23214.43.60.0 – 214.43.61.255512
214.43.62.0/23214.43.62.0 – 214.43.63.255512
214.43.70.0/23214.43.70.0 – 214.43.71.255512
214.43.80.0/23214.43.80.0 – 214.43.81.255512
214.43.92.0/22214.43.92.0 – 214.43.95.2551,024
214.43.105.0/24214.43.105.0 – 214.43.105.255256
214.43.128.0/24214.43.128.0 – 214.43.128.255256
214.43.129.0/24214.43.129.0 – 214.43.129.255256
214.43.132.0/22214.43.132.0 – 214.43.135.2551,024
214.43.136.0/24214.43.136.0 – 214.43.136.255256
214.43.144.0/21214.43.144.0 – 214.43.151.2552,048
214.43.152.0/23214.43.152.0 – 214.43.153.255512
214.43.154.0/23214.43.154.0 – 214.43.155.255512
214.43.156.0/22214.43.156.0 – 214.43.159.2551,024
214.43.160.0/24214.43.160.0 – 214.43.160.255256
214.43.161.0/24214.43.161.0 – 214.43.161.255256
214.43.162.0/24214.43.162.0 – 214.43.162.255256
214.43.163.0/24214.43.163.0 – 214.43.163.255256
214.43.164.0/24214.43.164.0 – 214.43.164.255256
214.43.166.0/24214.43.166.0 – 214.43.166.255256
214.43.167.0/24214.43.167.0 – 214.43.167.255256
214.43.168.0/21214.43.168.0 – 214.43.175.2552,048
214.43.176.0/23214.43.176.0 – 214.43.177.255512
214.43.178.0/24214.43.178.0 – 214.43.178.255256
214.43.179.0/24214.43.179.0 – 214.43.179.255256
214.43.180.0/23214.43.180.0 – 214.43.181.255512
214.43.182.0/24214.43.182.0 – 214.43.182.255256
214.43.183.0/24214.43.183.0 – 214.43.183.255256
214.43.184.0/22214.43.184.0 – 214.43.187.2551,024
214.43.188.0/23214.43.188.0 – 214.43.189.255512
214.43.190.0/23214.43.190.0 – 214.43.191.255512
214.43.192.0/23214.43.192.0 – 214.43.193.255512
214.43.200.0/22214.43.200.0 – 214.43.203.2551,024
214.43.204.0/22214.43.204.0 – 214.43.207.2551,024
214.43.208.0/20214.43.208.0 – 214.43.223.2554,096
214.43.224.0/20214.43.224.0 – 214.43.239.2554,096
214.43.240.0/21214.43.240.0 – 214.43.247.2552,048
214.43.249.0/24214.43.249.0 – 214.43.249.255256
214.43.250.0/24214.43.250.0 – 214.43.250.255256
214.43.251.0/24214.43.251.0 – 214.43.251.255256
214.43.252.0/24214.43.252.0 – 214.43.252.255256
214.43.253.0/24214.43.253.0 – 214.43.253.255256
214.44.32.0/19214.44.32.0 – 214.44.63.2558,192
214.44.80.0/24214.44.80.0 – 214.44.80.255256
214.44.81.0/24214.44.81.0 – 214.44.81.255256
214.44.82.0/24214.44.82.0 – 214.44.82.255256
214.44.83.0/24214.44.83.0 – 214.44.83.255256
214.44.84.0/24214.44.84.0 – 214.44.84.255256
214.44.85.0/24214.44.85.0 – 214.44.85.255256
214.44.86.0/24214.44.86.0 – 214.44.86.255256
214.44.87.0/24214.44.87.0 – 214.44.87.255256
214.44.130.0/24214.44.130.0 – 214.44.130.255256
214.44.136.0/24214.44.136.0 – 214.44.136.255256
214.44.143.0/24214.44.143.0 – 214.44.143.255256
214.44.144.0/20214.44.144.0 – 214.44.159.2554,096
214.44.160.0/19214.44.160.0 – 214.44.191.2558,192
214.44.192.0/18214.44.192.0 – 214.44.255.25516,384
214.45.224.0/20214.45.224.0 – 214.45.239.2554,096
214.45.240.0/21214.45.240.0 – 214.45.247.2552,048
214.45.240.0/24214.45.240.0 – 214.45.240.255256
214.45.242.0/24214.45.242.0 – 214.45.242.255256
214.45.243.0/24214.45.243.0 – 214.45.243.255256
214.45.245.0/24214.45.245.0 – 214.45.245.255256
214.45.246.0/24214.45.246.0 – 214.45.246.255256
214.45.250.0/24214.45.250.0 – 214.45.250.255256
214.45.251.0/24214.45.251.0 – 214.45.251.255256
214.45.252.0/22214.45.252.0 – 214.45.255.2551,024
214.52.0.0/22214.52.0.0 – 214.52.3.2551,024

IPv6 Prefixes

This AS does not currently announce any IPv6 prefixes.

BGP Neighbours

3 unique neighbours · 3 upstream/peer · 0 downstream. A neighbour can be seen on more than one side. Rows are ordered by AS paths: the number of BGP paths seen by RIPE RIS that contain the adjacency. Sightings count each IPv4/IPv6 route with the adjacency once per RIS peer that sees it (routes × peers), so they show how widely it is seen, not how many distinct routes it carries.

Upstream & peer side (3)

Networks seen to the left of this AS in BGP paths, toward the route collectors — typically its transit providers (upstreams) and peers.

ASNameAS pathsIPv4 sightingsIPv6 sightings
AS27066DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)29925,4360
AS27064DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)296137,0310
AS27065DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD)29111,5520

Raw RDAP Response

{
  "endAutnum": 665,
  "entities": [
    {
      "entities": [
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-02-12T10:14:24-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "1993-05-26T19:47:50-04:00"
            }
          ],
          "handle": "MIL-HSTMST-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/637"
            },
            {
              "href": "https://whois.arin.net/rest/poc/MIL-HSTMST-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/637"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "noc",
            "abuse",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
                "4.0"
              ],
              [
                "adr",
                {
                  "label": "DISA-Columbus\n300 North James Road\nWhitehall\nOH\n43213\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
                  "",
                  "",
                  ""
                ]
              ],
              [
                "fn",
                {},
                "text",
                "Network DoD"
              ],
              [
                "org",
                {},
                "text",
                "DoD Network Information Center (DoD NIC)"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-844-347-2457;ext2"
              ]
            ]
          ]
        },
        {
          "events": [
            {
              "eventAction": "last changed",
              "eventDate": "2026-02-12T13:52:28-05:00"
            },
            {
              "eventAction": "registration",
              "eventDate": "2009-06-24T09:41:15-04:00"
            }
          ],
          "handle": "REGIS10-ARIN",
          "links": [
            {
              "href": "https://rdap.arin.net/registry/entity/REGIS10-ARIN",
              "rel": "self",
              "type": "application/rdap+json",
              "value": "https://rdap.arin.net/registry/autnum/637"
            },
            {
              "href": "https://whois.arin.net/rest/poc/REGIS10-ARIN",
              "rel": "alternate",
              "type": "application/xml",
              "value": "https://rdap.arin.net/registry/autnum/637"
            }
          ],
          "objectClassName": "entity",
          "port43": "whois.arin.net",
          "roles": [
            "administrative",
            "technical"
          ],
          "status": [
            "validated"
          ],
          "vcardArray": [
            "vcard",
            [
              [
                "version",
                {},
                "text",
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              ],
              [
                "adr",
                {
                  "label": "DISA-Columbus\n300 North James Road\nWhitehall\nOH\n43213\nUnited States"
                },
                "text",
                [
                  "",
                  "",
                  "",
                  "",
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                  "",
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                ]
              ],
              [
                "fn",
                {},
                "text",
                "Registration"
              ],
              [
                "org",
                {},
                "text",
                "DoD Network Information Center"
              ],
              [
                "kind",
                {},
                "text",
                "group"
              ],
              [
                "email",
                {},
                "text",
                "[email protected]"
              ],
              [
                "tel",
                {
                  "type": [
                    "work",
                    "voice"
                  ]
                },
                "text",
                "+1-844-347-2457;ext2"
              ]
            ]
          ]
        }
      ],
      "events": [
        {
          "eventAction": "last changed",
          "eventDate": "2026-08-12T11:35:39-04:00"
        },
        {
          "eventAction": "registration",
          "eventDate": "2007-01-12T12:10:52-05:00"
        }
      ],
      "handle": "USDDD",
      "links": [
        {
          "href": "https://rdap.arin.net/registry/entity/USDDD",
          "rel": "self",
          "type": "application/rdap+json",
          "value": "https://rdap.arin.net/registry/autnum/637"
        },
        {
          "href": "https://whois.arin.net/rest/org/USDDD",
          "rel": "alternate",
          "type": "application/xml",
          "value": "https://rdap.arin.net/registry/autnum/637"
        }
      ],
      "objectClassName": "entity",
      "port43": "whois.arin.net",
      "roles": [
        "registrant"
      ],
      "vcardArray": [
        "vcard",
        [
          [
            "version",
            {},
            "text",
            "4.0"
          ],
          [
            "fn",
            {},
            "text",
            "United States Department of Defense (DoD)"
          ],
          [
            "adr",
            {
              "label": "3990 E. Broad Street\nColumbus\nOH\n43218\nUnited States"
            },
            "text",
            [
              "",
              "",
              "",
              "",
              "",
              "",
              ""
            ]
          ],
          [
            "kind",
            {},
            "text",
            "org"
          ]
        ]
      ]
    }
  ],
  "events": [
    {
      "eventAction": "last changed",
      "eventDate": "2025-09-12T09:58:08-04:00"
    },
    {
      "eventAction": "registration",
      "eventDate": "1990-04-19T00:00:00-04:00"
    }
  ],
  "handle": "AS616",
  "links": [
    {
      "href": "https://rdap.arin.net/registry/autnum/616",
      "rel": "self",
      "type": "application/rdap+json",
      "value": "https://rdap.arin.net/registry/autnum/637"
    },
    {
      "href": "https://whois.arin.net/rest/asn/AS616",
      "rel": "alternate",
      "type": "application/xml",
      "value": "https://rdap.arin.net/registry/autnum/637"
    }
  ],
  "name": "DNIC-ASBLK-00616-00665",
  "notices": [
    {
      "description": [
        "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/tou/",
          "rel": "terms-of-service",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/637"
        }
      ],
      "title": "Terms of Service"
    },
    {
      "description": [
        "If you see inaccuracies in the results, please visit: "
      ],
      "links": [
        {
          "href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
          "rel": "inaccuracy-report",
          "type": "text/html",
          "value": "https://rdap.arin.net/registry/autnum/637"
        }
      ],
      "title": "Whois Inaccuracy Reporting"
    },
    {
      "description": [
        "Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
      ],
      "title": "Copyright Notice"
    }
  ],
  "objectClassName": "autnum",
  "port43": "whois.arin.net",
  "rdapConformance": [
    "nro_rdap_profile_0",
    "rdap_level_0",
    "nro_rdap_profile_asn_flat_0"
  ],
  "startAutnum": 616,
  "status": [
    "active"
  ]
}

Contact details of private individuals are redacted.