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Autonomous System

AS6481

Southwest Research Institute

Announced IPs
65,536
CIDR prefixes
1
ASN
AS6481

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.

71/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
129.162.0.0/16 65.5K
0.0%
Southwest Research Institute US Texas San Antonio

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS6481 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
129.162.0.0/16 12,333 2026-07-27 00:25:50

Frequently Asked Questions

What is AS6481?

AS6481 is an Autonomous System Number assigned to Southwest Research Institute. 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 AS6481 announce?

AS6481 announces 65.5K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS6481?

AS6481 is operated by Southwest Research Institute. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS6481 registered in?

AS6481 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: 2026-07-27 01:10:30 UTC
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