Skip to main content
WorldIP.io
Organization

JCOM Co., Ltd.

Enterprise Japan
IPv4 addresses
6,733,822
CIDR ranges
171
Category
enterprise
BGP prefixes announced
594
live routing →

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 →

Countries served by JCOM Co., Ltd.

Every country where this organization has IPv4 allocations, ranked by IPs held.

Japan 6.73M

ASNs owned by JCOM Co., Ltd.

ASNNameIPsPrefixesCountry
AS9824 JCOM Co., Ltd. 4.75M 58 JP
AS9617 JCOM Co., Ltd. 1.16M 19 JP
AS4721 JCOM Co., Ltd. 631.8K 54 JP
AS9378 JCOM Co., Ltd. 45.1K 12 JP
AS18136 JCOM Co., Ltd. 43.0K 6 JP
AS18134 JCOM Co., Ltd. 29.7K 8 JP
AS23788 JCOM Co., Ltd. 24.6K 7 JP
AS24276 JCOM Co., Ltd. 20.5K 2 JP
AS23790 JCOM Co., Ltd. 18.4K 2 JP
AS7686 JCOM Co., Ltd. 8.2K 2 JP
AS45675 JCOM Co., Ltd. 4.1K 1 JP

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
27.136.0.0/13 524.3K
99.7%
AS9824 JP Chiba Urayasu
42.144.0.0/13 524.3K
99.9%
AS9824 JP Tokyo Nishiogikita
110.128.0.0/13 524.3K
99.8%
AS9824 JP Gunma Aramakimachi
119.168.0.0/13 524.3K
100.0%
AS9824 JP Osaka Suita
125.8.0.0/13 524.3K
100.0%
AS9824 JP Kyoto Kyoto
27.140.0.0/14 262.1K
99.8%
AS9824 JP Osaka Osaka
59.168.0.0/14 262.1K
99.8%
AS9824 JP Hokkaido Sapporo
61.24.0.0/14 262.1K
99.4%
AS9824 JP Chiba Inzai
116.220.0.0/14 262.1K
99.8%
AS9824 JP Osaka Sakai
124.140.0.0/14 262.1K
100.0%
AS9824 JP Toyama Nanto
27.136.0.0/15 131.1K
99.7%
AS9824 JP Osaka Osaka
49.250.0.0/15 131.1K
99.2%
AS9617 JP Osaka Osaka
60.58.0.0/15 131.1K
99.6%
AS9824 JP — —
60.60.0.0/15 131.1K
99.6%
AS9824 JP Saitama Koshigaya
61.22.0.0/15 131.1K
99.8%
AS9824 JP Fukuoka Fukuoka
61.26.0.0/15 131.1K
99.3%
AS9824 JP Fukuoka Fukuoka
116.64.0.0/15 131.1K
100.0%
AS9824 JP Tokyo Amanuma
118.86.0.0/15 131.1K
98.6%
AS4721 JP Tokyo Katsushika
119.24.0.0/15 131.1K
99.2%
AS9617 JP Hyōgo Ashiya
122.196.0.0/15 131.1K
96.1%
AS9617 JP Osaka Osaka
124.144.0.0/15 131.1K
100.0%
AS9824 JP Chiba Kashiwa
180.220.0.0/15 131.1K
99.5%
AS9617 JP Hyōgo Tarumi Ku
14.193.0.0/16 65.5K
98.8%
AS4721 JP Chiba Funabashi
27.138.0.0/16 65.5K
99.4%
AS9824 JP Tokyo Shinjuku
58.85.0.0/16 65.5K
98.8%
AS9617 JP Hyōgo Kobe
59.166.0.0/16 65.5K
99.6%
AS9824 JP Tokyo Sumiyoshichō
60.62.0.0/16 65.5K
99.7%
AS9824 JP Tottori Tottori Shi
61.21.0.0/16 65.5K
100.0%
AS9824 JP Tokyo Shimotakaido
61.24.0.0/16 65.5K
99.7%
AS9824 JP Kanagawa Chigasaki
61.46.0.0/16 65.5K
98.8%
AS9617 JP Osaka Ibaraki
118.83.0.0/16 65.5K
99.1%
AS4721 JP Tokyo Hachiōji
119.26.0.0/16 65.5K
99.2%
AS9617 JP Hyōgo Okamoto
125.4.0.0/16 65.5K
99.2%
AS9617 JP Hyōgo Kita Ku
203.165.0.0/16 65.5K
94.6%
AS9824 JP Tokyo Tokyo
210.20.0.0/16 65.5K
99.2%
AS9824 JP Tokyo Edogawa
210.194.0.0/16 65.5K
99.3%
AS9824 JP Kanagawa Yokosuka
211.124.0.0/16 65.5K
90.7%
AS9617 JP Osaka Osaka
218.220.0.0/16 65.5K
99.2%
AS9617 JP Hyōgo Kobe
219.115.0.0/16 65.5K
99.2%
AS9617 JP Osaka Osaka
27.139.128.0/17 32.8K
99.9%
AS9824 JP Chiba Chiba
61.25.0.0/17 32.8K
99.3%
AS9824 JP Saitama Honchō
61.192.0.0/17 32.8K
99.2%
AS9617 JP Osaka Takatsuki
111.90.0.0/17 32.8K
98.6%
AS4721 JP Chiba Matsudo
122.102.128.0/17 32.8K
99.2%
AS9617 JP Hyōgo Hyogo-ku
122.255.128.0/17 32.8K
99.5%
AS4721 JP Kanagawa Yabechō
211.135.0.0/17 32.8K
95.9%
AS9617 JP Osaka Osaka
27.126.64.0/18 16.4K
99.3%
AS18136 JP Tokyo Adachi
27.139.64.0/18 16.4K
99.9%
AS9824 JP Tokyo Nakano City
61.25.192.0/18 16.4K
98.5%
AS9824 JP Kanagawa Chigasaki
61.115.128.0/18 16.4K
94.4%
AS9617 JP Osaka Higashiosaka
61.125.64.0/18 16.4K
99.0%
AS9617 JP Osaka Ibaraki
61.205.128.0/18 16.4K
99.2%
AS9617 JP Osaka Daitō
112.137.64.0/18 16.4K
100.0%
AS4721 JP Tokyo Saiwaichō
114.134.192.0/18 16.4K
99.5%
AS4721 JP Kanagawa Kamikuratachō
116.70.128.0/18 16.4K
99.9%
AS4721 JP Chiba Matsudo
175.41.64.0/18 16.4K
99.1%
AS4721 JP Tokyo Kamata
202.157.0.0/18 16.4K
89.7%
AS23790 JP — —
210.2.192.0/18 16.4K
95.0%
AS24276 JP Chiba Funabashi
211.120.128.0/18 16.4K
97.6%
AS9617 JP Osaka Yao
219.114.192.0/18 16.4K
99.2%
AS9617 JP Hyōgo Nagata Ku
220.152.0.0/18 16.4K
98.6%
AS9824 JP Tokyo Takashimadaira
220.208.64.0/18 16.4K
94.9%
AS4721 JP Chiba Ichikawa
221.132.128.0/18 16.4K
99.9%
AS4721 JP Kanagawa Yokohama
27.139.0.0/19 8.2K
99.9%
AS9824 JP Saitama Kawaguchi
61.25.128.0/19 8.2K
99.4%
AS9824 JP Saitama Kawaguchi
61.203.224.0/19 8.2K
90.2%
AS4721 JP Tokyo Hino
61.215.128.0/19 8.2K
100.0%
AS9378 JP Kanagawa Yabechō
110.232.0.0/19 8.2K
98.9%
AS4721 JP Kanagawa Kōnan
114.198.192.0/19 8.2K
99.5%
AS4721 JP Tokyo Musashino
117.53.0.0/19 8.2K
100.0%
AS18136 JP Tokyo Adachi City
122.50.32.0/19 8.2K
99.2%
AS18134 JP Fukuoka Kitaku
123.98.224.0/19 8.2K
100.0%
AS4721 JP Tokyo Shimorenjaku
180.92.32.0/19 8.2K
99.9%
AS4721 JP Chiba Funabashi
180.149.160.0/19 8.2K
99.6%
AS4721 JP Saitama Kawaguchi
182.50.192.0/19 8.2K
99.2%
AS4721 JP Saitama Kawagoe
202.162.128.0/19 8.2K
99.2%
AS23788 JP Chiba Funabashi
203.89.32.0/19 8.2K
99.0%
AS4721 JP Chiba Ichikawa
203.124.64.0/19 8.2K
99.3%
AS4721 JP Tokyo Musashino
210.135.192.0/19 8.2K
83.7%
AS4721 JP Tokyo Musashino
219.105.96.0/19 8.2K
100.0%
AS18136 JP Tokyo Adachi
219.112.128.0/19 8.2K
98.3%
AS18134 JP Saitama Sōka Shi
219.112.192.0/19 8.2K
95.8%
AS4721 JP Tokyo Hino
219.117.160.0/19 8.2K
99.3%
AS4721 JP Tokyo Nakano City
219.124.224.0/19 8.2K
94.3%
AS4721 JP Kanagawa Kōnan
220.152.64.0/19 8.2K
100.0%
AS9824 JP Tokyo Honchō
223.165.32.0/19 8.2K
100.0%
AS4721 JP Kanagawa Kamakura
27.116.0.0/20 4.1K
100.0%
AS9378 JP Saitama Kawaguchi
27.126.128.0/20 4.1K
99.5%
AS18136 JP Tokyo Adachi
27.139.32.0/20 4.1K
99.8%
AS9824 JP Tokyo Nakano City
61.25.160.0/20 4.1K
99.6%
AS9824 JP — —
61.211.144.0/20 4.1K
98.6%
AS7686 JP — —
61.215.160.0/20 4.1K
99.9%
AS9378 JP Saitama Kawaguchi
110.4.48.0/20 4.1K
99.9%
AS4721 JP Kanagawa Odawara
110.92.80.0/20 4.1K
99.1%
AS4721 JP Kanagawa Kamikuratachō
110.93.96.0/20 4.1K
100.0%
AS9378 JP Saitama Kawaguchi
110.172.0.0/20 4.1K
99.6%
AS23788 JP Tokyo Tokyo
110.173.240.0/20 4.1K
98.9%
AS4721 JP Chiba Funabashi
112.137.32.0/20 4.1K
100.0%
AS4721 JP Tokyo Nakano City
113.52.16.0/20 4.1K
100.0%
AS4721 JP Tokyo Mure
113.61.112.0/20 4.1K
99.5%
AS4721 JP — —

Frequently Asked Questions

How many IP addresses does JCOM Co., Ltd. own?

JCOM Co., Ltd. controls 6.73M IPv4 addresses distributed across 171 CIDR ranges. The organization is registered in Japan.

What ASNs does JCOM Co., Ltd. operate?

JCOM Co., Ltd. operates 11 Autonomous Systems. Each ASN represents an independently routed network that JCOM Co., Ltd. manages for internet traffic delivery.

What type of organization is JCOM Co., Ltd.?

JCOM Co., Ltd. is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-11-07 02:39:05 UTC
Share