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Autonomous System

AS400387

Flying Bull Internet, LLC

Announced IPs
2,048
CIDR prefixes
1
ASN
AS400387

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
64.25.8.0/21 2.0K
0.0%
Flying Bull Internet, LLC US Texas McKinney

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS400387 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
64.25.10.0/23 14,752 2026-07-24 22:45:43
64.25.12.0/24 13,408 2026-07-24 22:41:48
64.25.8.0/21 6,086 2026-07-24 22:37:38
64.25.13.0/24 6,012 2026-07-24 22:37:38
64.25.8.0/22 30 2026-05-29 18:29:18

Frequently Asked Questions

What is AS400387?

AS400387 is an Autonomous System Number assigned to Flying Bull Internet, 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 AS400387 announce?

AS400387 announces 2.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS400387?

AS400387 is operated by Flying Bull Internet, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS400387 registered in?

AS400387 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 22:55:31 UTC
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