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Autonomous System

AS1280

Internet Systems Consortium, Inc.

Announced IPs
23,296
CIDR prefixes
20
ASN
AS1280

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 v1.3.0 — 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 →
Network type Non-Profit
Geographic scope Global
Traffic ratio Mostly Outbound
Peering policy Open
IRR record AS1280:AS-SET

Present at 1 internet exchange: Equinix Palo Alto

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS1280 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
204.152.190.0/24 17,156 2026-10-28 08:21:27
204.152.191.0/24 17,125 2026-10-28 08:21:27
149.20.59.0/24 17,105 2026-10-28 08:21:27
149.20.60.0/24 17,080 2026-10-28 08:21:27
149.20.61.0/24 17,079 2026-10-28 08:21:27
149.20.85.0/24 17,062 2026-10-28 08:21:27
149.20.86.0/24 17,053 2026-10-28 08:21:27
149.20.87.0/24 17,048 2026-10-28 08:21:27
149.20.54.0/24 17,048 2026-10-28 08:21:27
149.20.81.0/24 17,022 2026-10-28 08:21:27
204.152.186.0/24 17,008 2026-10-28 08:21:27
149.20.8.0/24 17,006 2026-10-28 08:21:27
204.152.187.0/24 16,988 2026-10-28 08:21:27
204.152.188.0/24 16,980 2026-10-28 08:21:27
204.152.185.0/24 16,976 2026-10-28 08:21:27
204.152.189.0/24 16,971 2026-10-28 08:21:27
204.152.184.0/24 16,954 2026-10-28 08:21:27
149.20.84.0/24 16,936 2026-10-28 08:21:27
149.20.7.0/24 16,864 2026-10-28 08:21:27
192.158.252.0/24 16,836 2026-10-28 08:21:27
204.152.184.0/21 16,448 2026-10-28 08:21:27
149.20.64.0/24 11,967 2026-10-28 08:31:14
149.20.30.0/24 11,967 2026-10-28 08:31:14
149.20.31.0/24 11,910 2026-10-28 08:31:13
149.20.65.0/24 11,869 2026-10-28 08:31:14
149.20.32.0/24 11,769 2026-10-28 08:31:13
149.20.33.0/24 11,759 2026-10-28 08:31:11
149.20.23.0/24 11,699 2026-10-28 08:31:14
149.20.22.0/24 11,698 2026-10-28 08:31:14
149.20.26.0/24 11,695 2026-10-28 08:31:13
149.20.56.0/24 11,691 2026-10-28 08:31:13
149.20.62.0/24 11,690 2026-10-28 08:31:13
149.20.63.0/24 11,685 2026-10-28 08:31:11
149.20.93.0/24 11,679 2026-10-28 08:31:11
149.20.90.0/24 11,674 2026-10-28 08:31:14
149.20.52.0/24 11,673 2026-10-28 08:31:14
149.20.94.0/24 11,672 2026-10-28 08:31:14
149.20.29.0/24 11,666 2026-10-28 08:31:14
149.20.27.0/24 11,663 2026-10-28 08:31:11
149.20.51.0/24 11,662 2026-10-28 08:31:11
149.20.24.0/24 11,662 2026-10-28 08:31:14
149.20.95.0/24 11,658 2026-10-28 08:31:14
149.20.25.0/24 11,658 2026-10-28 08:31:13
149.20.28.0/24 11,658 2026-10-28 08:31:14
149.20.19.0/24 11,656 2026-10-28 08:31:13
149.20.55.0/24 11,653 2026-10-28 08:31:13
149.20.46.0/24 11,652 2026-10-28 08:31:14
149.20.18.0/24 11,648 2026-10-28 08:31:14
149.20.21.0/24 11,648 2026-10-28 08:31:11
149.20.48.0/24 11,648 2026-10-28 08:31:14

Showing top 50 of 106 announced prefixes by sample volume.

Frequently Asked Questions

What is AS1280?

AS1280 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 AS1280 announce?

AS1280 announces 23.3K IPv4 addresses distributed across 20 routed CIDR prefixes. The network is registered in United States.

Who operates AS1280?

AS1280 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 AS1280 registered in?

AS1280 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: 2026-10-28 08:39:05 UTC
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