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Organization

U.S. Dept. of Health and Human Services

IPv4 addresses
300,800
CIDR ranges
49
Category
enterprise
BGP prefixes announced
18

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Countries served by U.S. Dept. of Health and Human Services

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by U.S. Dept. of Health and Human Services

ASNNameIPsPrefixesCountry
AS26810 U.S. Dept. of Health and Human Services 300.8K 49 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
158.72.0.0/16 65.5K
0.4%
AS26810 US Maryland Kensington
158.71.0.0/17 32.8K
0.1%
AS26810 US Maryland Silver Spring
158.74.128.0/17 32.8K
0.6%
AS26810 US
162.99.0.0/17 32.8K
0.4%
AS26810 US Maryland Beltsville
158.70.192.0/18 16.4K
0.4%
AS26810 US
158.71.128.0/18 16.4K
0.0%
AS26810 US Virginia Manassas
158.74.64.0/18 16.4K
0.3%
AS26810 US
162.99.128.0/18 16.4K
0.1%
AS26810 US
158.70.64.0/19 8.2K
0.2%
AS26810 US
158.71.160.0/19 8.2K
0.0%
AS26810 US
158.71.192.0/19 8.2K
3.4%
AS26810 US
158.74.0.0/19 8.2K
0.9%
AS26810 US
162.99.192.0/19 8.2K
0.0%
AS26810 US
158.70.48.0/20 4.1K
0.0%
AS26810 US
158.70.96.0/20 4.1K
0.0%
AS26810 US
158.70.176.0/20 4.1K
1.3%
AS26810 US
158.71.144.0/20 4.1K
0.0%
AS26810 US
158.74.48.0/20 4.1K
9.6%
AS26810 US
158.70.0.0/21 2.0K
0.1%
AS26810 US
158.70.120.0/21 2.0K
0.0%
AS26810 US
158.70.152.0/21 2.0K
0.0%
AS26810 US
158.70.160.0/21 2.0K
0.2%
AS26810 US
158.71.128.0/21 2.0K
0.0%
AS26810 US
158.74.40.0/21 2.0K
0.2%
AS26810 US
158.70.44.0/22 1.0K
0.2%
AS26810 US
158.70.116.0/22 1.0K
0.4%
AS26810 US
158.70.140.0/22 1.0K
0.2%
AS26810 US
158.70.148.0/22 1.0K
0.2%
AS26810 US
158.70.168.0/22 1.0K
0.1%
AS26810 US
158.71.132.0/22 1.0K
0.0%
AS26810 US
158.74.32.0/22 1.0K
5.5%
AS26810 US
158.70.16.0/23 512
0.0%
AS26810 US
158.70.22.0/23 512
0.0%
AS26810 US
158.70.30.0/23 512
0.2%
AS26810 US
158.70.114.0/23 512
0.0%
AS26810 US
158.70.144.0/23 512
1.4%
AS26810 US
158.70.172.0/23 512
0.0%
AS26810 US
158.71.142.0/23 512
0.0%
AS26810 US
158.74.36.0/23 512
12.7%
AS26810 US
198.179.0.0/23 512
3.7%
AS26810 US Maryland Germantown
158.70.32.0/24 256
1.2%
AS26810 US
158.70.112.0/24 256
0.0%
AS26810 US
158.70.175.0/24 256
0.0%
AS26810 US
158.71.138.0/24 256
0.4%
AS26810 US
158.71.141.0/24 256
0.0%
AS26810 US
158.71.225.0/24 256
2.0%
AS26810 US
158.74.39.0/24 256
0.4%
AS26810 US
198.102.218.0/24 256
0.0%
AS26810 US
198.179.2.0/24 256
5.1%
AS26810 US

Frequently Asked Questions

How many IP addresses does U.S. Dept. of Health and Human Services own?

U.S. Dept. of Health and Human Services controls 300.8K IPv4 addresses distributed across 49 CIDR ranges. The organization is registered in United States.

What ASNs does U.S. Dept. of Health and Human Services operate?

U.S. Dept. of Health and Human Services operates 1 Autonomous System. Each ASN represents an independently routed network that U.S. Dept. of Health and Human Services manages for internet traffic delivery.

What type of organization is U.S. Dept. of Health and Human Services?

U.S. Dept. of Health and Human Services is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-31 03:40:32 UTC
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