Skip to main content
Autonomous System

AS30133

Internet Systems Consortium, Inc.

Announced IPs
10,240
CIDR prefixes
25
ASN
AS30133

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 v1.1.0 — 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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
192.228.80.0/22 1.0K
0.0%
Internet Systems Consortium, Inc. US
199.6.8.0/22 1.0K
0.0%
Internet Systems Consortium, Inc. US
200.93.240.0/22 1.0K
0.0%
Internet Systems Consortium, Inc. UY
192.158.250.0/23 512
0.0%
Internet Systems Consortium, Inc. US
192.228.84.0/23 512
0.0%
Internet Systems Consortium, Inc. US
199.6.12.0/23 512
0.0%
Internet Systems Consortium, Inc. US Georgia Atlanta
200.93.244.0/23 512
0.0%
Internet Systems Consortium, Inc. UY
202.41.142.0/23 512
0.0%
Internet Systems Consortium, Inc. NZ
203.119.16.0/23 512
0.0%
Internet Systems Consortium, Inc. JP
103.11.221.0/24 256
0.0%
Internet Systems Consortium, Inc. JP
192.228.87.0/24 256
0.0%
Internet Systems Consortium, Inc. US
192.228.92.0/24 256
0.0%
Internet Systems Consortium, Inc. US
199.6.3.0/24 256
0.0%
Internet Systems Consortium, Inc. US
199.6.14.0/24 256
0.0%
Internet Systems Consortium, Inc. US
199.253.63.0/24 256
0.0%
Internet Systems Consortium, Inc. US
199.253.181.0/24 256
0.0%
Internet Systems Consortium, Inc. US
200.93.246.0/24 256
0.0%
Internet Systems Consortium, Inc. UY
202.41.140.0/24 256
0.0%
Internet Systems Consortium, Inc. NZ
202.41.142.0/24 256
0.0%
CN
202.41.143.0/24 256
0.0%
HK
202.41.144.0/24 256
0.0%
Internet Systems Consortium, Inc. AU
202.41.146.0/24 256
0.0%
Internet Systems Consortium, Inc. TW
203.119.16.0/24 256
0.0%
JP
203.119.17.0/24 256
0.0%
ID
203.119.19.0/24 256
0.0%
Internet Systems Consortium, Inc. JP
203.119.20.0/24 256
0.0%
Internet Systems Consortium, Inc. PK
203.119.51.0/24 256
0.0%
Internet Systems Consortium, Inc. FJ
203.119.57.0/24 256
0.0%
Internet Systems Consortium, Inc. MY
203.119.79.0/24 256
0.0%
Internet Systems Consortium, Inc. KH

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS30133 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
200.93.240.0/24 4,964 2026-07-19 14:28:26
203.119.57.0/24 4,956 2026-07-19 14:28:26
199.6.13.0/24 4,931 2026-07-19 14:28:26
200.93.241.0/24 4,927 2026-07-19 14:28:26
200.93.245.0/24 4,925 2026-07-19 14:28:26
192.158.251.0/24 4,923 2026-07-19 14:28:26
192.158.250.0/24 4,923 2026-07-19 14:28:26
199.6.12.0/24 4,921 2026-07-19 14:28:26
200.93.244.0/24 4,919 2026-07-19 14:28:26
199.6.9.0/24 4,917 2026-07-19 14:28:26
200.93.242.0/24 4,917 2026-07-19 14:28:26
199.6.10.0/24 4,914 2026-07-19 14:28:26
199.6.11.0/24 4,913 2026-07-19 14:28:26
202.41.140.0/24 4,912 2026-07-19 14:28:26
200.93.243.0/24 4,910 2026-07-19 14:28:26
199.6.8.0/24 4,910 2026-07-19 14:28:26
202.41.146.0/24 4,908 2026-07-19 14:28:26
199.253.181.0/24 4,902 2026-07-19 14:28:26
203.119.16.0/24 4,847 2026-07-19 14:28:26
192.228.81.0/24 4,841 2026-07-19 14:28:26
192.228.80.0/24 4,827 2026-07-19 14:28:26
203.119.17.0/24 4,826 2026-07-19 14:28:26
199.253.63.0/24 4,815 2026-07-19 14:28:26
103.11.221.0/24 4,808 2026-07-19 14:27:43
200.93.246.0/24 4,807 2026-07-19 14:28:26
192.228.92.0/24 4,804 2026-07-19 14:28:26
192.228.82.0/24 4,803 2026-07-19 14:28:26
192.228.83.0/24 4,802 2026-07-19 14:28:26
192.228.84.0/24 4,800 2026-07-19 14:28:26
203.119.51.0/24 4,799 2026-07-19 14:28:26
192.228.87.0/24 4,799 2026-07-19 14:28:26
199.6.14.0/24 4,790 2026-07-19 14:28:26
203.119.79.0/24 4,789 2026-07-19 14:28:26
203.119.19.0/24 4,787 2026-07-19 14:28:26
192.228.85.0/24 4,785 2026-07-19 14:28:26
202.41.143.0/24 4,781 2026-07-19 14:28:26
202.41.144.0/24 4,781 2026-07-19 14:28:26
202.41.142.0/24 4,779 2026-07-19 14:28:26
203.119.20.0/24 4,775 2026-07-19 14:28:26

Frequently Asked Questions

What is AS30133?

AS30133 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 AS30133 announce?

AS30133 announces 10.2K IPv4 addresses distributed across 25 routed CIDR prefixes. The network is registered in United States.

Who operates AS30133?

AS30133 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 AS30133 registered in?

AS30133 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: 2026-07-19 15:40:31 UTC
Share