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Autonomous System

AS397376

IFN

Announced IPs
3,328
CIDR prefixes
7
ASN
AS397376

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 →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 1-5Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record AS397376:AS-ALL

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
104.251.188.0/22 1.0K
2.9%
IFN US Washington Garfield
142.202.228.0/22 1.0K
36.0%
IFN US Washington Pullman
23.176.224.0/24 256
4.3%
IFN US Washington Palouse
44.12.48.0/24 256
0.0%
IFN US
44.30.16.0/24 256
0.0%
IFN US
44.32.108.0/24 256
0.0%
IFN US Washington Oakesdale
204.16.43.0/24 256
67.6%
IFN US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS397376 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
44.12.48.0/24 81,353 2026-07-24 22:37:53
204.16.43.0/24 70,878 2026-07-25 00:46:24
44.32.108.0/24 47,084 2026-07-24 22:37:38
44.30.16.0/24 47,049 2026-07-24 22:37:38
23.176.224.0/24 46,416 2026-07-24 22:37:38
142.202.228.0/22 44,200 2026-07-24 22:37:40
104.251.188.0/22 41,803 2026-07-24 22:37:40
104.251.190.0/24 41,784 2026-07-25 00:46:24
104.251.189.0/24 325 2026-07-10 05:05:44

Frequently Asked Questions

What is AS397376?

AS397376 is an Autonomous System Number assigned to IFN. 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 AS397376 announce?

AS397376 announces 3.3K IPv4 addresses distributed across 7 routed CIDR prefixes. The network is registered in United States.

Who operates AS397376?

AS397376 is operated by IFN. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS397376 registered in?

AS397376 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: 2026-07-25 01:55:31 UTC
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