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Autonomous System details for AS3527

AS3527

National Institutes of Health • nih.gov

AS3527 — National Institutes of Health

AS Name

NIH-NET

Country

United States (US)

Website

nih.gov

Number of IPv4

345,856

Number of IPv6

3.87 × 10²⁵

ASN type

Government

Status

Assigned

Registry

ARIN

Allocated

April 07, 1994

Last updated

October 28, 2022

IP Ranges

15 IPv4 prefixes, 1 IPv6 prefixes

Prefix	Company	Number of IPs
128.231.0.0/16	National Institutes of Health	65,536
128.231.3.0/24	National Institutes of Health	256
128.231.245.0/24	National Institutes of Health	256
137.187.0.0/16	National Institutes of Health	65,536
156.40.0.0/16	National Institutes of Health	65,536
157.98.0.0/16	National Institute of Environmental Health Sciences	65,536
162.99.224.0/19	HRSA	8,192
165.112.0.0/16	National Institutes of Health	65,536
165.112.0.0/20	National Institutes of Health	4,096
165.112.0.0/21	National Institutes of Health	2,048
165.112.136.0/21	National Institutes of Health	2,048
192.231.145.0/24	National Institutes of Health	256
192.231.146.0/23	National Institutes of Health	512
192.231.146.0/24	National Institutes of Health	256
192.231.147.0/24	National Institutes of Health	256
2607:f220:400::/43	U.S. Dept. of Health and Human Services	3.87 × 10²⁵

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 AS3527

1 peers

AS6150

AS3527 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 AS3527

2 upstreams

AS10886 AS19050

AS3527 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS3527 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS3527

0 downstreams

AS3527 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.