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Autonomous System

AS21952

Neill Corporation

Announced IPs
1,792
CIDR prefixes
3
ASN
AS21952

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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
208.245.20.0/22 1.0K
38.8%
Neill Corporation US
208.64.208.0/23 512
0.0%
Neill Corporation US
208.64.215.0/24 256
57.0%
Neill Corporation US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21952 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
208.64.208.0/24 17,639 2026-07-23 15:40:24
208.64.209.0/24 17,631 2026-07-23 15:40:24
208.245.20.0/22 17,546 2026-07-23 15:40:24
208.64.215.0/24 13,360 2026-07-23 15:48:02

Frequently Asked Questions

What is AS21952?

AS21952 is an Autonomous System Number assigned to Neill 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 AS21952 announce?

AS21952 announces 1.8K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.

Who operates AS21952?

AS21952 is operated by Neill Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS21952 registered in?

AS21952 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 16:25:31 UTC
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