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Autonomous System

AS397904

Avangrid Renewables, LLC

Announced IPs
256
CIDR prefixes
1
ASN
AS397904

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
70.96.228.0/24 256
0.0%
Avangrid Renewables, LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS397904 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
70.96.228.0/24 4,356 2026-07-24 00:03:51

Frequently Asked Questions

What is AS397904?

AS397904 is an Autonomous System Number assigned to Avangrid Renewables, LLC. 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 AS397904 announce?

AS397904 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS397904?

AS397904 is operated by Avangrid Renewables, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS397904 registered in?

AS397904 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: 2026-07-24 00:25:31 UTC
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