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Autonomous System

AS53501

WebMD Health Services Group, Inc.

Announced IPs
1,024
CIDR prefixes
1
ASN
AS53501

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
64.113.28.0/22 1.0K
0.0%
WebMD Health Services Group, Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS53501 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
64.113.30.0/23 19,967 2026-08-05 02:53:51
64.113.30.0/24 14,974 2026-08-05 00:01:08
64.113.31.0/24 14,939 2026-08-05 00:01:08
64.113.28.0/23 8,910 2026-08-05 02:53:51
64.113.28.0/24 6,957 2026-08-05 01:51:19
64.113.29.0/24 5,080 2026-08-05 02:53:55

Frequently Asked Questions

What is AS53501?

AS53501 is an Autonomous System Number assigned to WebMD Health Services Group, Inc.. 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 AS53501 announce?

AS53501 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS53501?

AS53501 is operated by WebMD Health Services Group, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS53501 registered in?

AS53501 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: 2026-08-05 02:55:31 UTC
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