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Autonomous System

AS4459

KDDI America Inc.

Announced IPs
10,752
CIDR prefixes
5
ASN
AS4459

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.

58/100
Caution
How this score is built

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

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS4459 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
209.137.128.0/19 AS4459, AS32699 2026-09-11 00:40:49

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Selective

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
209.137.128.0/19 8.2K
10.6%
KDDI America Inc. US New York New York
67.214.156.0/22 1.0K
5.9%
KDDI America Inc. US
199.173.232.0/22 1.0K
0.0%
KDDI America Inc. US
69.48.141.0/24 256
0.0%
KDDI America Inc. US
69.48.149.0/24 256
0.0%
KDDI America Inc. US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS4459 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
69.48.149.0/24 21,021 2026-09-10 23:42:51
67.214.159.0/24 20,999 2026-09-10 23:42:51
67.214.156.0/24 20,984 2026-09-10 23:42:51
69.48.141.0/24 20,981 2026-09-10 23:42:51
67.214.158.0/24 20,969 2026-09-10 23:42:51
67.214.157.0/24 20,968 2026-09-10 23:42:51
209.137.140.0/24 18,453 2026-09-10 23:43:15
209.137.135.0/24 18,450 2026-09-10 23:43:15
209.137.137.0/24 18,443 2026-09-10 23:43:15
209.137.157.0/24 18,439 2026-09-10 23:43:15
209.137.143.0/24 18,438 2026-09-10 23:43:15
209.137.133.0/24 18,433 2026-09-10 23:43:15
209.137.159.0/24 18,425 2026-09-10 23:43:15
209.137.139.0/24 18,422 2026-09-10 23:43:15
209.137.158.0/24 18,419 2026-09-10 23:43:15
209.137.131.0/24 18,417 2026-09-10 23:43:15
209.137.142.0/24 18,416 2026-09-10 23:43:15
209.137.138.0/24 18,408 2026-09-10 23:43:15
209.137.134.0/24 18,407 2026-09-10 23:43:15
199.173.232.0/22 18,360 2026-09-10 23:44:31
209.137.136.0/24 18,067 2026-09-10 23:44:31
209.137.128.0/19 8,724 2026-09-11 00:23:41
209.137.136.0/21 136 2026-08-15 04:39:27
209.137.141.0/24 136 2026-08-15 04:39:27

Frequently Asked Questions

What is AS4459?

AS4459 is an Autonomous System Number assigned to KDDI America 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 AS4459 announce?

AS4459 announces 10.8K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in United States.

Who operates AS4459?

AS4459 is operated by KDDI America Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS4459 registered in?

AS4459 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: 2026-09-11 00:39:06 UTC
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