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Autonomous System details for AS27087

AS27087

United States Department of Defense (DoD) • mail.mil

AS27087 — United States Department of Defense (DoD)

AS Name

DNIC-ASBLK-27032-27159

Country

United States (US)

Website

mail.mil

Number of IPv4

36,608

Number of IPv6

ASN type

Government

Status

Assigned

Registry

ARIN

Allocated

January 16, 2003

Last updated

September 12, 2025

IP Ranges

31 IPv4 prefixes

Prefix	Company	Number of IPs
130.16.48.0/20	Headquarters, USAISC	4,096
140.185.6.0/24	Department of Immigration	256
140.185.47.0/24	Department of Immigration	256
140.185.80.0/20	Department of Immigration	4,096
140.185.82.0/23	Department of Immigration	512
140.185.96.0/19	Department of Immigration	8,192
140.185.119.0/24	Department of Immigration	256
140.185.153.0/24	Department of Immigration	256
140.185.155.0/24	Department of Immigration	256
140.185.160.0/21	Department of Immigration	2,048
140.185.168.0/23	Department of Immigration	512
140.185.170.0/24	Department of Immigration	256
140.185.185.0/24	Department of Immigration	256
140.185.186.0/24	Department of Immigration	256
140.185.192.0/20	Department of Immigration	4,096
140.185.238.0/24	Department of Immigration	256
140.185.244.0/24	Department of Immigration	256
214.14.56.0/21		2,048
214.14.61.0/24		256
214.14.63.0/24		256
214.14.64.0/20		4,096
214.14.68.0/24		256
214.14.120.0/23		512
214.14.124.0/24		256
214.14.176.0/23		512
214.14.178.0/23		512
214.14.180.0/23		512
214.14.182.0/23		512
214.14.214.0/24		256
214.14.232.0/24		256
214.14.238.0/24		256

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS27087

1 peers

AS745

AS27087 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS27087

0 upstreams

AS27087 has no upstreams recorded.

An upstream (or transit provider) is another AS that AS27087 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS27087

0 downstreams

AS27087 has no downstreams recorded.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.