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Autonomous System

AS18126

Chubu Telecommunications Company, Inc.

Announced IPs
1,505,536
CIDR prefixes
45
ASN
AS18126

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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 1-5Tbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record JPIRR::AS-CTCX

Present at 8 internet exchanges: JPIX TOKYO, JPIX OSAKA, BBIX Tokyo, JPNAP Tokyo: Peering, JPNAP Osaka, BBIX Osaka, Equinix Osaka, Equinix Tokyo

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
115.36.0.0/14 262.1K
99.1%
Chubu Telecommunications Company, Inc. JP Shizuoka Hamamatsu
180.196.0.0/14 262.1K
99.9%
Chubu Telecommunications Company, Inc. JP Aichi Toyota
14.132.0.0/15 131.1K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
118.104.0.0/15 131.1K
100.0%
Chubu Telecommunications Company, Inc. JP Gifu Gifu
59.130.0.0/16 65.5K
99.9%
Chubu Telecommunications Company, Inc. JP Nagano Nagano
113.155.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
118.106.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Gifu Ōgaki
123.48.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
124.18.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
163.46.0.0/16 65.5K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
219.8.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Shizuoka Fuji
222.9.0.0/16 65.5K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Okazaki
123.1.0.0/17 32.8K
100.0%
Chubu Telecommunications Company, Inc. JP Shizuoka Hamamatsu
150.49.0.0/17 32.8K
0.2%
Chubu Telecommunications Company, Inc. JP — —
223.29.0.0/17 32.8K
39.1%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
150.49.128.0/18 16.4K
0.6%
Chubu Telecommunications Company, Inc. JP — —
150.49.192.0/19 8.2K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
202.142.224.0/19 8.2K
90.1%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
14.192.32.0/20 4.1K
48.6%
Chubu Telecommunications Company, Inc. JP Aichi Osu
133.88.240.0/20 4.1K
6.3%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
150.49.224.0/20 4.1K
0.0%
Chubu Telecommunications Company, Inc. JP — —
202.41.208.0/20 4.1K
34.5%
Chubu Telecommunications Company, Inc. JP Shizuoka Shizuoka
202.62.160.0/20 4.1K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
202.124.0.0/20 4.1K
0.0%
Chubu Telecommunications Company, Inc. JP Nagano Ikuta
202.124.208.0/20 4.1K
55.3%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
203.129.112.0/20 4.1K
54.0%
Chubu Telecommunications Company, Inc. JP Aichi Seto
210.173.144.0/20 4.1K
84.5%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
218.216.176.0/20 4.1K
39.7%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
219.117.32.0/20 4.1K
77.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
112.137.56.0/21 2.0K
64.7%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
133.88.232.0/21 2.0K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
150.49.240.0/21 2.0K
0.1%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
202.150.48.0/21 2.0K
29.3%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
45.114.16.0/22 1.0K
99.8%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
45.119.164.0/22 1.0K
99.2%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
103.2.20.0/22 1.0K
81.4%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
103.41.136.0/22 1.0K
99.9%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
103.44.84.0/22 1.0K
99.8%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
103.64.132.0/22 1.0K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
133.88.228.0/22 1.0K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
150.49.248.0/22 1.0K
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
203.209.176.0/22 1.0K
100.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
150.49.252.0/23 512
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya
162.4.98.0/23 512
0.0%
Chubu Telecommunications Company, Inc. JP — —
133.88.227.0/24 256
0.0%
Chubu Telecommunications Company, Inc. JP Aichi Nagoya

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS18126 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
14.133.0.0/16 16,278 2026-10-14 06:09:54
14.132.0.0/16 15,686 2026-10-14 06:09:54
123.48.0.0/16 15,668 2026-10-14 06:09:54
14.192.32.0/20 15,629 2026-10-14 06:24:59
59.130.0.0/17 15,558 2026-10-14 06:24:59
45.114.16.0/22 15,488 2026-10-14 06:24:59
113.155.0.0/17 15,432 2026-10-14 06:24:57
103.41.136.0/22 15,140 2026-10-14 06:24:59
113.155.128.0/17 14,896 2026-10-14 06:24:57
103.2.20.0/22 14,778 2026-10-14 06:24:59
112.137.56.0/21 14,689 2026-10-14 06:24:57
222.9.128.0/17 14,637 2026-10-14 06:21:24
103.64.132.0/23 14,619 2026-10-14 06:24:59
103.64.134.0/24 14,603 2026-10-14 06:24:59
103.64.135.0/24 14,601 2026-10-14 06:24:59
103.44.84.0/22 14,540 2026-10-14 06:24:59
133.88.232.0/21 14,395 2026-10-14 06:24:57
203.209.176.0/22 14,310 2026-10-14 06:21:24
45.119.164.0/22 14,262 2026-10-14 06:24:57
133.88.227.0/24 14,193 2026-10-14 06:24:57
133.88.228.0/22 14,158 2026-10-14 06:24:57
150.49.244.0/22 14,154 2026-10-14 06:24:57
133.88.248.0/21 14,137 2026-10-14 06:24:57
203.129.112.0/20 14,136 2026-10-14 06:21:24
133.88.240.0/21 14,077 2026-10-14 06:24:57
222.9.0.0/17 14,023 2026-10-14 06:09:54
163.46.0.0/16 14,018 2026-10-14 06:24:57
202.124.0.0/20 13,959 2026-10-14 06:21:24
150.49.248.0/22 13,944 2026-10-14 06:24:57
150.49.0.0/18 13,944 2026-10-14 06:24:57
223.29.0.0/17 13,940 2026-10-14 06:21:24
150.49.96.0/19 13,911 2026-10-14 06:24:57
150.49.64.0/19 13,911 2026-10-14 06:24:57
150.49.240.0/22 13,882 2026-10-14 06:24:57
218.216.176.0/20 13,866 2026-10-14 06:21:24
150.49.128.0/18 13,860 2026-10-14 06:24:57
180.199.0.0/16 13,860 2026-10-14 06:09:54
202.150.48.0/21 13,852 2026-10-14 06:21:24
210.173.144.0/20 13,845 2026-10-14 06:21:24
150.49.224.0/20 13,828 2026-10-14 06:24:57
150.49.192.0/19 13,823 2026-10-14 06:24:57
202.41.208.0/20 13,810 2026-10-14 06:21:24
202.124.208.0/20 13,783 2026-10-14 06:21:24
150.49.252.0/23 13,775 2026-10-14 06:24:57
202.142.224.0/19 13,758 2026-10-14 06:21:24
180.196.0.0/16 13,706 2026-10-14 06:09:54
202.62.160.0/20 13,646 2026-10-14 06:21:24
115.37.0.0/16 13,334 2026-10-14 05:42:54
115.38.0.0/16 13,279 2026-10-14 05:42:54
115.39.0.0/16 13,206 2026-10-14 05:42:16

Showing top 50 of 76 announced prefixes by sample volume.

Frequently Asked Questions

What is AS18126?

AS18126 is an Autonomous System Number assigned to Chubu Telecommunications Company, 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 AS18126 announce?

AS18126 announces 1.51M IPv4 addresses distributed across 45 routed CIDR prefixes. The network is registered in Japan.

Who operates AS18126?

AS18126 is operated by Chubu Telecommunications Company, Inc.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.

What country is AS18126 registered in?

AS18126 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-10-14 06:24:05 UTC
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