Skip to main content
Autonomous System

AS397120

Chemung County, New York

Announced IPs
256
CIDR prefixes
1
ASN
AS397120

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
23.128.240.0/24 256
1.2%
Chemung County, New York US New York Elmira

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS397120 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
23.128.240.0/24 6,566 2026-07-24 07:21:56

Frequently Asked Questions

What is AS397120?

AS397120 is an Autonomous System Number assigned to Chemung County, New York. 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 AS397120 announce?

AS397120 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS397120?

AS397120 is operated by Chemung County, New York. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS397120 registered in?

AS397120 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 07:55:33 UTC
Share