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Autonomous System

AS4583

West Publishing Corporation

Announced IPs
6,656
CIDR prefixes
9
ASN
AS4583

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

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS4583 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
155.46.165.0/24 20,972 2026-07-30 17:41:40
155.46.168.0/22 20,035 2026-07-30 17:59:49
155.46.172.0/22 19,922 2026-07-30 17:59:48
155.46.144.0/22 14,437 2026-07-30 16:56:38
155.46.156.0/23 14,359 2026-07-30 16:56:38
155.46.152.0/23 13,778 2026-07-30 18:13:13
155.46.136.0/22 7,262 2026-07-30 18:13:13

Frequently Asked Questions

What is AS4583?

AS4583 is an Autonomous System Number assigned to West Publishing Corporation. 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 AS4583 announce?

AS4583 announces 6.7K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in United States.

Who operates AS4583?

AS4583 is operated by West Publishing Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS4583 registered in?

AS4583 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: 2026-07-30 18:25:32 UTC
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