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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 23,543 2026-11-12 13:59:11
204.152.191.0/24 23,514 2026-11-12 13:59:11
149.20.59.0/24 23,483 2026-11-12 13:59:11
149.20.61.0/24 23,468 2026-11-12 13:59:11
149.20.60.0/24 23,457 2026-11-12 13:59:11
149.20.85.0/24 23,450 2026-11-12 13:59:11
149.20.86.0/24 23,432 2026-11-12 13:59:11
149.20.87.0/24 23,428 2026-11-12 13:59:11
149.20.54.0/24 23,420 2026-11-12 13:59:11
149.20.81.0/24 23,412 2026-11-12 13:59:11
204.152.186.0/24 23,374 2026-11-12 13:59:11
204.152.185.0/24 23,338 2026-11-12 13:59:11
204.152.187.0/24 23,337 2026-11-12 13:59:11
204.152.188.0/24 23,336 2026-11-12 13:59:11
204.152.189.0/24 23,327 2026-11-12 13:59:11
149.20.84.0/24 23,326 2026-11-12 13:59:11
204.152.184.0/24 23,314 2026-11-12 13:59:11
149.20.8.0/24 23,228 2026-11-12 13:59:11
149.20.7.0/24 23,082 2026-11-12 13:59:11
192.158.252.0/24 23,046 2026-11-12 13:59:11
204.152.184.0/21 22,797 2026-11-12 13:59:11
149.20.30.0/24 13,553 2026-11-12 13:59:11
149.20.64.0/24 13,492 2026-11-12 13:59:11
149.20.31.0/24 13,429 2026-11-12 13:59:11
149.20.65.0/24 13,384 2026-11-12 13:59:11
149.20.32.0/24 13,229 2026-11-12 13:59:11
149.20.33.0/24 13,178 2026-11-12 13:59:11
149.20.23.0/24 13,122 2026-11-12 13:59:11
149.20.26.0/24 13,114 2026-11-12 13:59:11
149.20.22.0/24 13,108 2026-11-12 13:59:11
149.20.62.0/24 13,108 2026-11-12 13:59:11
149.20.56.0/24 13,096 2026-11-12 13:59:11
149.20.93.0/24 13,095 2026-11-12 13:59:11
149.20.94.0/24 13,095 2026-11-12 13:59:11
149.20.24.0/24 13,094 2026-11-12 13:59:11
149.20.90.0/24 13,092 2026-11-12 13:59:11
149.20.63.0/24 13,090 2026-11-12 13:59:11
149.20.51.0/24 13,088 2026-11-12 13:59:11
149.20.21.0/24 13,087 2026-11-12 13:59:11
149.20.27.0/24 13,087 2026-11-12 13:59:11
149.20.29.0/24 13,085 2026-11-12 13:59:11
149.20.95.0/24 13,079 2026-11-12 13:59:11
149.20.46.0/24 13,074 2026-11-12 13:59:11
149.20.55.0/24 13,073 2026-11-12 13:59:11
149.20.25.0/24 13,069 2026-11-12 13:59:11
149.20.52.0/24 13,069 2026-11-12 13:59:11
149.20.28.0/24 13,062 2026-11-12 13:59:11
149.20.19.0/24 13,057 2026-11-12 13:59:11
149.20.58.0/24 13,054 2026-11-12 13:59:11
149.20.48.0/24 13,048 2026-11-12 13:59:11

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: 2026-11-12 14:09:06 UTC
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