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	321
Name	DNIC-ASBLK-00306-00371
Organization	DoD Network Information Center
Country	United States
Registry	ARIN

IPv4 addresses	69,120
IPv6 /64 networks	224
Prefixes	16

IPv4 Prefixes for AS321

Network		Location	Addresses
139.241.3.0/24	DoD Network Information Center	Columbus	256
139.241.58.0/24	DoD Network Information Center	Honolulu	256
139.241.59.0/24	DoD Network Information Center	Columbus	256
55.24.0.0/16	DoD Network Information Center	Columbus	65,536
55.24.105.0/24	DoD Network Information Center	Columbus	256
55.24.20.0/24	DoD Network Information Center	Columbus	256
55.24.229.0/24	DoD Network Information Center	Columbus	256
55.24.230.0/24	DoD Network Information Center	Columbus	256
55.24.231.0/24	DoD Network Information Center	Columbus	256
55.24.232.0/24	DoD Network Information Center	Columbus	256
55.24.234.0/24	DoD Network Information Center	Columbus	256
55.24.236.0/24	DoD Network Information Center	Columbus	256
55.24.251.0/24	DoD Network Information Center	Columbus	256
55.24.51.0/24	DoD Network Information Center	Columbus	256
55.24.87.0/24	DoD Network Information Center	Columbus	256

IPv6 Prefixes for AS321

Network		Location	/64 Prefixes
2608:14a:3100::/40	United States Department of Defense (DoD)	Columbus	224