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WorldIP.io
Autonomous System

AS131965

Xserver Inc.

Announced IPs
165,120
CIDR prefixes
26
ASN
AS131965

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.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Content
Traffic level 50-100Gbps
Geographic scope Asia Pacific
Traffic ratio Mostly Outbound
Peering policy Open
IRR record AS-XSERVER-131965

Present at 5 internet exchanges: BBIX Tokyo, JPIX OSAKA, BBIX Osaka, JPIX TOKYO, JPNAP Osaka

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
153.115.0.0/16 65.5K
0.1%
Xserver Inc. JP — —
162.43.0.0/17 32.8K
57.7%
Xserver Inc. JP — —
85.131.192.0/18 16.4K
37.0%
Xserver Inc. JP — —
183.90.224.0/19 8.2K
23.6%
Xserver Inc. JP — —
157.112.144.0/20 4.1K
22.9%
Xserver Inc. JP — —
157.112.176.0/20 4.1K
18.4%
Xserver Inc. JP — —
183.181.80.0/20 4.1K
50.3%
Xserver Inc. JP — —
210.131.208.0/20 4.1K
52.0%
Xserver Inc. JP — —
220.158.16.0/20 4.1K
45.4%
Xserver Inc. JP — —
222.228.0.0/20 4.1K
0.0%
Xserver Inc. JP — —
222.228.64.0/20 4.1K
6.0%
Xserver Inc. JP — —
120.136.8.0/21 2.0K
12.9%
Xserver Inc. JP — —
202.254.232.0/21 2.0K
33.5%
Xserver Inc. JP — —
103.3.0.0/22 1.0K
38.5%
Xserver Inc. JP — —
103.54.156.0/22 1.0K
2.4%
Xserver Inc. JP — —
175.28.4.0/22 1.0K
23.1%
Xserver Inc. JP — —
183.181.96.0/22 1.0K
77.9%
Xserver Inc. JP — —
202.226.36.0/22 1.0K
42.3%
Xserver Inc. JP — —
202.233.64.0/22 1.0K
57.4%
Xserver Inc. JP — —
223.27.68.0/22 1.0K
7.3%
Xserver Inc. JP — —
103.141.96.0/23 512
68.8%
Xserver Inc. JP — —
183.181.78.0/23 512
40.4%
Xserver Inc. JP — —
210.157.78.0/23 512
57.6%
Xserver Inc. JP — —
202.210.8.0/24 256
68.8%
Xserver Inc. JP — —
202.237.154.0/24 256
0.0%
Xserver Inc. JP — —
202.240.141.0/24 256
0.8%
Xserver Inc. JP — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS131965 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
120.136.8.0/21 11,936 2026-10-27 10:49:36
120.136.8.0/22 11,932 2026-10-27 10:49:36
120.136.12.0/22 11,886 2026-10-27 10:49:36
157.112.144.0/20 11,787 2026-10-27 10:49:45
157.112.144.0/21 11,746 2026-10-27 10:49:45
157.112.184.0/21 11,722 2026-10-27 10:49:45
157.112.176.0/21 11,668 2026-10-27 10:49:45
175.28.4.0/23 11,665 2026-10-27 10:49:49
157.112.152.0/21 11,664 2026-10-27 10:49:45
175.28.4.0/22 11,658 2026-10-27 10:49:49
157.112.176.0/20 11,657 2026-10-27 10:49:45
175.28.6.0/23 11,626 2026-10-27 10:49:49
183.181.98.0/23 11,600 2026-10-27 10:49:55
210.157.78.0/23 11,550 2026-10-27 10:23:45
85.131.192.0/18 11,537 2026-10-27 10:49:17
153.115.0.0/16 11,528 2026-10-27 10:49:43
103.3.0.0/22 11,471 2026-10-27 10:49:24
103.54.156.0/22 11,433 2026-10-27 10:49:24
183.181.96.0/22 11,428 2026-10-27 10:49:55
223.27.70.0/24 11,424 2026-10-27 10:23:45
223.27.71.0/24 11,419 2026-10-27 10:23:45
183.181.96.0/23 11,399 2026-10-27 10:49:55
223.27.69.0/24 11,383 2026-10-27 10:23:45
103.141.96.0/24 11,379 2026-10-27 10:49:27
103.141.97.0/24 11,364 2026-10-27 10:49:27
222.228.0.0/20 11,353 2026-10-27 10:23:45
222.228.64.0/20 11,350 2026-10-27 10:23:45
103.141.96.0/23 11,334 2026-10-27 10:49:27
202.240.141.0/24 11,326 2026-10-27 10:23:45
162.43.0.0/17 11,319 2026-10-27 10:49:47
183.181.90.0/23 11,308 2026-10-27 10:49:55
183.181.92.0/24 11,308 2026-10-27 10:49:55
183.181.88.0/23 11,306 2026-10-27 10:49:55
202.210.8.0/24 11,306 2026-10-27 10:23:45
183.90.224.0/20 11,295 2026-10-27 10:49:55
183.181.94.0/24 11,292 2026-10-27 10:49:55
162.43.112.0/21 11,288 2026-10-27 10:49:47
202.237.154.0/24 11,273 2026-10-27 10:23:45
183.90.224.0/19 11,272 2026-10-27 10:49:55
223.27.68.0/24 11,265 2026-10-27 10:23:45
183.181.80.0/20 11,261 2026-10-27 10:49:55
183.181.84.0/22 11,260 2026-10-27 10:49:55
183.181.78.0/24 11,251 2026-10-27 10:49:55
183.181.78.0/23 11,250 2026-10-27 10:49:55
210.131.208.0/20 11,246 2026-10-27 10:23:45
183.181.80.0/22 11,236 2026-10-27 10:49:55
183.90.240.0/20 11,236 2026-10-27 10:49:55
220.158.16.0/20 11,228 2026-10-27 10:23:45
183.181.79.0/24 11,207 2026-10-27 10:49:55
202.226.36.0/22 11,207 2026-10-27 10:23:45

Showing top 50 of 60 announced prefixes by sample volume.

Frequently Asked Questions

What is AS131965?

AS131965 is an Autonomous System Number assigned to Xserver 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 AS131965 announce?

AS131965 announces 165.1K IPv4 addresses distributed across 26 routed CIDR prefixes. The network is registered in Japan.

Who operates AS131965?

AS131965 is operated by Xserver Inc.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.

What country is AS131965 registered in?

AS131965 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-27 10:54:05 UTC
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