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Autonomous System

AS400965

Cypress Fiber

Announced IPs
256
CIDR prefixes
1
ASN
AS400965

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.

70/100
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
23.154.236.0/24 256
50.4%
Cypress Fiber US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS400965 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
23.154.236.0/24 31,207 2026-07-23 14:21:56

Frequently Asked Questions

What is AS400965?

AS400965 is an Autonomous System Number assigned to Cypress Fiber. 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 AS400965 announce?

AS400965 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS400965?

AS400965 is operated by Cypress Fiber. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS400965 registered in?

AS400965 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: 2026-07-23 14:40:31 UTC
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