DoD Network Information Center

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

ASN	721
Name	DNIC-ASBLK-00721-00726
Organization	DoD Network Information Center
Country	United States
Registry	ARIN

IPv4 addresses	73,150,976
IPv6 /64 networks	233
Prefixes	249

IPv4 Prefixes for AS721 - showing the first 20 of 247 networks

Network		Location	Addresses
130.22.0.0/16	DoD Network Information Center	Columbus	65,536
131.16.0.0/16	DoD Network Information Center	London	65,536
131.32.0.0/11	DoD Network Information Center	Montgomery	2,097,152
131.4.0.0/15	DoD Network Information Center	Montgomery	131,072
131.64.0.0/13	DoD Network Information Center	Whitehall	524,288
131.73.0.0/16	DoD Network Information Center	Columbus	65,536
131.74.0.0/15	DoD Network Information Center	Whitehall	131,072
131.76.0.0/14	DoD Network Information Center	Columbus	262,144
131.78.204.0/24	DoD Network Information Center	Columbus	256
131.78.3.0/24	DoD Network Information Center	Columbus	256
131.80.0.0/14	DoD Network Information Center	Whitehall	262,144
131.86.0.0/15	DoD Network Information Center	London	131,072
131.86.0.0/16	DoD Network Information Center	London	65,536
131.87.0.0/16	DoD Network Information Center	Columbus	65,536
132.0.0.0/10	DoD Network Information Center	Montgomery	4,194,304
132.128.0.0/12	DoD Network Information Center	Sierra Vista (Fort Huachuca)	1,048,576
132.80.0.0/12	DoD Network Information Center	Sierra Vista (Fort Huachuca)	1,048,576
132.96.0.0/11	DoD Network Information Center	Sierra Vista (Fort Huachuca)	2,097,152
134.135.0.0/16	DoD Network Information Center	Whitehall	65,536
134.233.0.0/16	DoD Network Information Center	London	65,536

IPv6 Prefixes for AS721

Network		Location	/64 Prefixes
2608:120::/32	DoD Network Information Center	Columbus	232
2608:121::/32	DoD Network Information Center	Columbus	232