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Autonomous System

AS5974

United States Department of Defense (DoD)

Announced IPs
93,184
CIDR prefixes
20
ASN
AS5974

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.

73/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Government allocation +8
  • Trust score 73 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About High Performance Computing Modernization Program

The United States Department of Defense High Performance Computing Modernization Program (HPCMP) was initiated in 1992 in response to Congressional direction to modernize the Department of Defense (DoD) laboratories’ high performance computing capabilities. The HPCMP provides supercomputers, a national research network, high-end software tools, a secure environment, and computational science experts that together enable the Defense laboratories and test centers to conduct research, development, test and technology evaluation activities.

Headquarters
Vicksburg
Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
131.77.0.0/16 65.5K
8.4%
United States Department of Defense DoD US
131.77.0.0/17 32.8K
9.4%
United States Department of Defense DoD US
131.77.128.0/18 16.4K
9.4%
United States Department of Defense DoD US
214.49.128.0/18 16.4K
0.0%
United States Department of Defense DoD US
131.77.192.0/19 8.2K
9.9%
United States Department of Defense DoD US
214.66.160.0/19 8.2K
9.9%
United States Department of Defense DoD US
131.77.224.0/20 4.1K
0.6%
United States Department of Defense DoD US
131.77.248.0/21 2.0K
2.1%
United States Department of Defense DoD US
131.77.240.0/22 1.0K
1.2%
United States Department of Defense DoD US
156.112.88.0/22 1.0K
7.3%
United States Department of Defense DoD US
131.77.244.0/23 512
1.2%
United States Department of Defense DoD US
156.112.94.0/23 512
3.9%
United States Department of Defense DoD US
131.77.246.0/24 256
0.8%
United States Department of Defense DoD US
156.112.92.0/24 256
22.3%
United States Department of Defense DoD US
156.112.94.0/24 256
7.8%
United States Department of Defense DoD US
209.22.236.0/24 256
10.9%
United States Department of Defense DoD US
214.23.232.0/24 256
2.7%
United States Department of Defense DoD US
214.24.243.0/24 256
0.0%
United States Department of Defense DoD US
214.38.232.0/24 256
0.0%
United States Department of Defense DoD US
214.38.236.0/24 256
0.0%
United States Department of Defense DoD US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS5974 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
214.66.182.0/23 7,283 2026-07-22 02:01:58
156.112.94.0/24 5,807 2026-07-22 02:02:25
156.112.89.0/24 5,782 2026-07-22 02:02:25
156.112.91.0/24 5,763 2026-07-22 02:02:25
156.112.90.0/24 5,761 2026-07-22 02:02:25
156.112.92.0/24 5,761 2026-07-22 02:02:25
131.77.104.0/24 5,758 2026-07-22 02:02:25
156.112.88.0/24 5,755 2026-07-22 02:02:25
131.77.0.0/16 5,753 2026-07-22 02:02:25
209.22.236.0/24 5,709 2026-07-22 02:02:25
214.49.128.0/18 5,696 2026-07-22 02:02:25
214.66.160.0/19 5,689 2026-07-22 02:02:25
214.23.232.0/24 5,682 2026-07-22 02:02:25
214.38.232.0/24 5,679 2026-07-22 02:02:25
214.24.243.0/24 5,672 2026-07-22 02:02:25
214.38.236.0/24 5,659 2026-07-22 02:02:25
156.112.95.0/24 2,278 2026-07-13 06:46:18

Frequently Asked Questions

What is AS5974?

AS5974 is an Autonomous System Number assigned to United States Department of Defense (DoD). An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS5974 announce?

AS5974 announces 93.2K IPv4 addresses distributed across 20 routed CIDR prefixes. The network is registered in United States.

Who operates AS5974?

AS5974 is operated by United States Department of Defense DoD. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS5974 registered in?

AS5974 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-22 02:10:35 UTC
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