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Autonomous System

AS33071

Internet Systems Consortium, Inc.

Announced IPs
256
CIDR prefixes
1
ASN
AS33071

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
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Internet Systems Consortium

Internet Systems Consortium, Inc., also known as ISC, is an American non-profit corporation that supports the infrastructure of the universal, self-organizing Internet by developing and maintaining core production-quality software, protocols, and operations. ISC has developed several key Internet technologies that enable the global Internet, including: BIND, ISC DHCP and Kea.

Founded
1994
Headquarters
Redwood City

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Open
IRR record AS33071:AS-SET

Present at 1 internet exchange: Equinix Chicago

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
199.6.0.0/24 256
7.8%
Internet Systems Consortium, Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS33071 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
199.6.0.0/24 4,304 2026-07-24 15:46:40

Frequently Asked Questions

What is AS33071?

AS33071 is an Autonomous System Number assigned to Internet Systems Consortium, 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 AS33071 announce?

AS33071 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS33071?

AS33071 is operated by Internet Systems Consortium, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS33071 registered in?

AS33071 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 17:10:31 UTC
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