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Autonomous System

AS131099

Korea Internet Security Agency

Announced IPs
512
CIDR prefixes
2
ASN
AS131099

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

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
1.18.118.0/24 256
0.0%
Korea Internet Security Agency KR
210.101.61.0/24 256
0.0%
Korea Internet Security Agency KR

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS131099 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
1.18.118.0/24 7,365 2026-07-27 20:08:49
210.101.61.0/24 6,559 2026-07-27 20:10:14

Frequently Asked Questions

What is AS131099?

AS131099 is an Autonomous System Number assigned to Korea Internet Security Agency. 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 AS131099 announce?

AS131099 announces 512 IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in South Korea.

Who operates AS131099?

AS131099 is operated by Korea Internet Security Agency. The organization is based in South Korea. You can view all IP ranges and related ASNs on the organization page.

What country is AS131099 registered in?

AS131099 is registered in South Korea. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-27 21:40:32 UTC
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