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Autonomous System

AS401773

Washington County, Oregon

Announced IPs
4,096
CIDR prefixes
1
ASN
AS401773

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
204.147.144.0/20 4.1K
0.0%
Washington County, Oregon US Oregon Hillsboro

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS401773 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
204.147.144.0/20 10,397 2026-07-18 10:52:38

Frequently Asked Questions

What is AS401773?

AS401773 is an Autonomous System Number assigned to Washington County, Oregon. 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 AS401773 announce?

AS401773 announces 4.1K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS401773?

AS401773 is operated by Washington County, Oregon. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS401773 registered in?

AS401773 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: 2026-07-18 12:40:28 UTC
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