All ASNs

Autonomous System details for AS518

AS518

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

AS518 — United States Department of Defense (DoD)

AS Name

DNIC-AS-00518

Country

United States (US)

Website

mail.mil

Number of IPv4

8,704

Number of IPv6

2.42 × 10²⁴

ASN type

Government

Status

Assigned

Registry

ARIN

Allocated

September 08, 1989

Last updated

September 12, 2025

IP Ranges

15 IPv4 prefixes, 2 IPv6 prefixes

Prefix	Company	Number of IPs
199.9.178.0/23		512
199.9.178.0/24		256
199.9.179.0/24		256
199.9.180.0/22		1,024
199.9.180.0/24		256
199.9.181.0/24		256
199.9.224.0/23		512
199.9.226.0/24		256
199.9.228.0/24		256
199.9.229.0/24		256
199.9.230.0/24		256
199.9.231.0/24		256
199.9.232.0/21		2,048
199.9.240.0/21		2,048
199.9.247.0/24		256
2001:480:421::/48	High Performance Computing	1.21 × 10²⁴
2001:480:1610::/48	High Performance Computing	1.21 × 10²⁴

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 AS518

0 peers

AS518 has no peers recorded.

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 AS518

1 upstreams

AS668

AS518 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS518 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS518

0 downstreams

AS518 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.