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Autonomous System

AS9824

JCOM Co., Ltd.

JCOM Co., Ltd. Japan 🌐 jcom.co.jp
Announced IPs
4,745,214
CIDR prefixes
58
ASN
AS9824

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 Cable/DSL/ISP
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Selective
IRR record AS-9824TRANSIT AS-9824TRANSIT6

Present at 6 internet exchanges: JPNAP Tokyo: Peering, Equinix Tokyo, JPIX TOKYO, JPIX OSAKA, BBIX Tokyo, JPNAP Osaka

Website ↗

Web3 footprint

AS9824 hosts 2 observed decentralized-network nodes across 2 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.

₿ Bitcoin 1 Ξ Ethereum 1

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
27.136.0.0/13 524.3K
99.9%
JCOM Co., Ltd. JP Chiba Urayasu
42.144.0.0/13 524.3K
99.8%
JCOM Co., Ltd. JP Tokyo Nishiogikita
110.128.0.0/13 524.3K
99.9%
JCOM Co., Ltd. JP Gunma Aramakimachi
119.168.0.0/13 524.3K
100.0%
JCOM Co., Ltd. JP Kyoto Kyoto
125.8.0.0/13 524.3K
99.9%
JCOM Co., Ltd. JP Kyoto Kyoto
27.140.0.0/14 262.1K
99.9%
JCOM Co., Ltd. JP Osaka Osaka
59.168.0.0/14 262.1K
99.9%
JCOM Co., Ltd. JP Hokkaido Sapporo
61.24.0.0/14 262.1K
99.6%
JCOM Co., Ltd. JP Chiba Inzai
116.220.0.0/14 262.1K
99.8%
JCOM Co., Ltd. JP Osaka Sakai
124.140.0.0/14 262.1K
99.9%
JCOM Co., Ltd. JP Toyama Nanto
27.136.0.0/15 131.1K
99.9%
JCOM Co., Ltd. JP Osaka Osaka
60.58.0.0/15 131.1K
99.9%
JCOM Co., Ltd. JP — —
60.60.0.0/15 131.1K
99.9%
JCOM Co., Ltd. JP Saitama Koshigaya
61.22.0.0/15 131.1K
99.9%
JCOM Co., Ltd. JP Fukuoka Fukuoka
61.26.0.0/15 131.1K
99.5%
JCOM Co., Ltd. JP Fukuoka Fukuoka
116.64.0.0/15 131.1K
100.0%
JCOM Co., Ltd. JP Tokyo Amanuma
124.144.0.0/15 131.1K
100.0%
JCOM Co., Ltd. JP Chiba Kashiwa
27.138.0.0/16 65.5K
99.9%
JCOM Co., Ltd. JP Tokyo Shinjuku
59.166.0.0/16 65.5K
99.9%
JCOM Co., Ltd. JP Tokyo Sumiyoshichō
60.62.0.0/16 65.5K
99.9%
JCOM Co., Ltd. JP Tottori Tottori Shi
61.21.0.0/16 65.5K
100.0%
JCOM Co., Ltd. JP Tokyo Shimotakaido
61.24.0.0/16 65.5K
99.9%
JCOM Co., Ltd. JP Kanagawa Chigasaki
203.165.0.0/16 65.5K
95.1%
JCOM Co., Ltd. JP Tokyo Tokyo
210.20.0.0/16 65.5K
100.0%
JCOM Co., Ltd. JP Tokyo Edogawa
210.194.0.0/16 65.5K
100.0%
JCOM Co., Ltd. JP Kanagawa Yokosuka
27.139.128.0/17 32.8K
99.9%
JCOM Co., Ltd. JP Chiba Chiba
61.25.0.0/17 32.8K
99.6%
JCOM Co., Ltd. JP Saitama Honchō
27.139.64.0/18 16.4K
99.9%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.192.0/18 16.4K
98.7%
JCOM Co., Ltd. JP Kanagawa Chigasaki
220.152.0.0/18 16.4K
98.6%
JCOM Co., Ltd. JP Tokyo Takashimadaira
27.139.0.0/19 8.2K
99.9%
JCOM Co., Ltd. JP Saitama Kawaguchi
61.25.128.0/19 8.2K
99.7%
JCOM Co., Ltd. JP Saitama Kawaguchi
220.152.64.0/19 8.2K
99.9%
JCOM Co., Ltd. JP Tokyo Honchō
27.139.32.0/20 4.1K
99.9%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.160.0/20 4.1K
99.9%
JCOM Co., Ltd. JP — —
27.139.48.0/21 2.0K
99.9%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.184.0/21 2.0K
99.2%
JCOM Co., Ltd. JP Toyama Toyama
116.214.16.0/21 2.0K
100.0%
JCOM Co., Ltd. JP — —
27.139.56.0/22 1.0K
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.180.0/22 1.0K
99.1%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.60.0/23 512
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.178.0/23 512
99.8%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.63.0/24 256
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.177.0/24 256
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.128/25 128
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.0/25 128
99.2%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.64/26 64
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.128/26 64
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.32/27 32
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.224/27 32
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.0/28 16
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.208/28 16
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.24/29 8
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.200/29 8
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.16/30 4
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.196/30 4
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.22/31 2
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.192/31 2
100.0%
JCOM Co., Ltd. JP Tochigi Oyama
27.139.62.20/32 1
100.0%
JCOM Co., Ltd. JP Tokyo Nakano City
61.25.176.195/32 1
100.0%
JCOM Co., Ltd. JP Tochigi Oyama

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS9824 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
116.222.0.0/18 15,471 2026-10-27 08:17:25
125.8.64.0/18 15,290 2026-10-27 08:17:25
27.137.0.0/16 15,229 2026-10-27 08:09:15
59.169.0.0/18 15,225 2026-10-27 08:17:25
59.169.64.0/18 15,163 2026-10-27 08:17:25
125.8.0.0/18 15,132 2026-10-27 08:17:25
119.169.0.0/18 15,092 2026-10-27 08:17:25
119.169.128.0/18 15,071 2026-10-27 08:17:25
124.145.192.0/18 15,048 2026-10-27 08:17:25
42.145.0.0/16 15,048 2026-10-27 08:09:15
27.138.0.0/16 15,047 2026-10-27 08:09:15
125.11.192.0/18 15,044 2026-10-27 08:17:25
124.145.64.0/18 15,043 2026-10-27 08:17:25
61.23.0.0/17 15,037 2026-10-27 08:09:15
124.145.0.0/18 15,023 2026-10-27 08:17:25
125.11.128.0/18 15,021 2026-10-27 08:17:25
124.145.128.0/18 15,021 2026-10-27 08:17:25
116.221.0.0/17 15,020 2026-10-27 08:17:25
116.222.64.0/18 15,018 2026-10-27 08:17:25
125.9.0.0/18 15,009 2026-10-27 08:17:25
119.174.128.0/18 15,002 2026-10-27 08:17:25
61.23.128.0/17 14,993 2026-10-27 08:09:15
61.21.128.0/17 14,983 2026-10-27 08:09:15
27.139.0.0/16 14,977 2026-10-27 08:09:15
125.15.128.0/17 14,976 2026-10-27 08:17:25
42.148.0.0/16 14,957 2026-10-27 08:09:15
125.9.64.0/18 14,944 2026-10-27 08:17:25
125.14.128.0/17 14,789 2026-10-27 08:09:15
27.140.0.0/16 14,782 2026-10-27 08:09:08
116.221.128.0/17 14,745 2026-10-27 08:17:25
110.131.0.0/16 14,739 2026-10-27 08:09:15
119.172.128.0/17 14,716 2026-10-27 08:09:15
210.194.0.0/17 14,699 2026-10-27 08:09:15
110.132.0.0/16 14,698 2026-10-27 08:09:15
119.171.128.0/17 14,694 2026-10-27 08:09:15
119.175.128.0/17 14,694 2026-10-27 08:09:15
125.14.0.0/17 14,693 2026-10-27 08:09:15
116.65.128.0/17 14,681 2026-10-27 08:09:15
61.22.128.0/17 14,677 2026-10-27 08:09:06
119.173.0.0/17 14,662 2026-10-27 08:09:15
59.170.128.0/17 14,655 2026-10-27 08:09:05
210.194.128.0/17 14,646 2026-10-27 08:09:15
203.165.0.0/17 14,644 2026-10-27 08:09:15
42.146.0.0/16 14,594 2026-10-27 08:09:11
60.59.0.0/17 14,587 2026-10-27 08:09:08
27.143.0.0/16 14,574 2026-10-27 08:09:11
42.144.0.0/16 14,555 2026-10-27 08:09:11
27.141.0.0/16 14,544 2026-10-27 08:09:11
42.147.0.0/16 14,543 2026-10-27 08:09:11
60.59.0.0/16 14,517 2026-10-27 08:09:07

Showing top 50 of 235 announced prefixes by sample volume.

Frequently Asked Questions

What is AS9824?

AS9824 is an Autonomous System Number assigned to JCOM Co., Ltd.. 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 AS9824 announce?

AS9824 announces 4.75M IPv4 addresses distributed across 58 routed CIDR prefixes. The network is registered in Japan.

Who operates AS9824?

AS9824 is operated by JCOM Co., Ltd.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.

What country is AS9824 registered in?

AS9824 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 08:24:06 UTC
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