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Autonomous System

AS149

United States Department of Defense (DoD)

Announced IPs
24,576
CIDR prefixes
14
ASN
AS149

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.

61/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Multiple-origin (MOAS) routing anomaly −12
  • Government allocation +8
  • Trust score 61 / 100

Experimental · trust-vectors model v1.2.0 — 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

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS149 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
215.69.222.0/24 AS149, AS634, AS636 2026-07-29 14:54:35
215.69.221.0/24 AS149, AS634, AS636 2026-07-29 14:54:35

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS149 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
215.69.221.0/24 129,437 2026-07-29 13:15:48
215.69.222.0/24 129,372 2026-07-29 11:39:19
215.69.248.0/22 43,357 2026-07-29 11:39:19
215.67.222.0/23 43,276 2026-07-29 11:39:19
214.9.248.0/21 42,724 2026-07-29 13:15:41
215.69.240.0/22 42,575 2026-07-29 13:15:41
215.69.252.0/24 42,385 2026-07-29 11:51:42
215.69.130.0/23 42,208 2026-07-29 13:15:41
215.67.6.0/23 41,738 2026-07-29 13:15:41
215.67.220.0/22 41,546 2026-07-29 11:51:42
215.67.128.0/18 41,413 2026-07-29 11:51:42
215.69.245.0/24 40,669 2026-07-29 13:15:41
215.69.239.0/24 40,449 2026-07-29 13:15:41
215.69.224.0/24 20,372 2026-07-29 11:19:50
215.69.160.0/23 1,023 2026-07-29 11:51:42

Frequently Asked Questions

What is AS149?

AS149 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 AS149 announce?

AS149 announces 24.6K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United States.

Who operates AS149?

AS149 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 AS149 registered in?

AS149 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: 2026-07-29 14:55:34 UTC
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