Autonomous System details

AS4721

JCOM Co., Ltd. · jcom.co.jp

Japan

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AS4721 – JCOM Co., Ltd.

Field	Value
Country	Japan
Website	jcom.co.jp
Hosted domains	57
IPv4 addresses	631,808
IPv6 addresses	79,228,162,514,264,337,593,543,950,336
ASN type	ISP
Registry	jpnic
Updated	4 years ago on Feb 18, 2022

Netblock	Company	Num of IPs
118.86.0.0/15	JCOM Co., Ltd.	131,072
14.193.0.0/16	JCOM Co., Ltd.	65,536
118.83.0.0/16	JCOM Co., Ltd.	65,536
118.86.0.0/16	JCOM Co., Ltd.	65,536
118.87.0.0/16	JCOM Co., Ltd.	65,536
14.193.0.0/17	JCOM Co., Ltd.	32,768
14.193.128.0/17	JCOM Co., Ltd.	32,768
111.90.0.0/17	JCOM Co., Ltd.	32,768
118.83.0.0/17	Jupiter Telecommunications Co., Ltd.	32,768
118.83.128.0/17	Jupiter Telecommunications Co., Ltd.	32,768
122.255.128.0/17	JCOM Co., Ltd.	32,768
111.90.0.0/18	Jupiter Telecommunications Co., Ltd.	16,384
111.90.64.0/18	JCOM Co., Ltd.	16,384
112.137.64.0/18	JCOM Co., Ltd.	16,384
114.134.192.0/18	JCOM Co., Ltd.	16,384
116.70.128.0/18	JCOM Co., Ltd.	16,384
122.255.128.0/18	JCOM Co., Ltd.	16,384
122.255.192.0/18	JCOM Co., Ltd.	16,384
175.41.64.0/18	JCOM Co., Ltd.	16,384
220.208.64.0/18	JCOM Co., Ltd.	16,384
221.132.128.0/18	JCOM Co., Ltd.	16,384
61.203.224.0/19	JCOM Co., Ltd.	8,192
110.232.0.0/19	JCOM Co., Ltd.	8,192
112.137.64.0/19	JCOM Co., Ltd.	8,192
112.137.96.0/19	JCOM Co., Ltd.	8,192
114.134.192.0/19	JCOM Co., Ltd.	8,192
114.134.224.0/19	JCOM Co., Ltd.	8,192
114.198.192.0/19	JCOM Co., Ltd.	8,192
116.70.128.0/19	JCOM Co., Ltd.	8,192
116.70.160.0/19	JCOM Co., Ltd.	8,192
123.98.224.0/19	JCOM Co., Ltd.	8,192
175.41.64.0/19	Jupiter Telecommunications Co., Ltd.	8,192
175.41.96.0/19	Jupiter Telecommunications Co., Ltd.	8,192
180.92.32.0/19	JCOM Co., Ltd.	8,192
180.149.160.0/19	JCOM Co., Ltd.	8,192
182.50.192.0/19	JCOM Co., Ltd.	8,192
203.89.32.0/19	JCOM Co., Ltd.	8,192
203.124.64.0/19	JCOM Co., Ltd.	8,192
210.135.192.0/19	JCOM Co., Ltd.	8,192
219.112.192.0/19	JCOM Co., Ltd.	8,192
219.117.160.0/19	JCOM Co., Ltd.	8,192
219.124.224.0/19	JCOM Co., Ltd.	8,192
220.208.64.0/19	Jupiter Telecommunications Co., Ltd.	8,192
220.208.96.0/19	JCOM Co., Ltd.	8,192
221.132.128.0/19	Jupiter Telecommunications Co., Ltd.	8,192
221.132.160.0/19	Jupiter Telecommunications Co., Ltd.	8,192
223.165.32.0/19	JCOM Co., Ltd.	8,192
61.203.224.0/20	Jupiter Telecommunications Co., Ltd.	4,096
61.203.240.0/20	Jupiter Telecommunications Co., Ltd.	4,096
110.4.48.0/20	JCOM Co., Ltd.	4,096
110.92.80.0/20	JCOM Co., Ltd.	4,096
110.173.240.0/20	JCOM Co., Ltd.	4,096
110.232.0.0/20	JCOM Co., Ltd.	4,096
110.232.16.0/20	JCOM Co., Ltd.	4,096
112.137.32.0/20	JCOM Co., Ltd.	4,096
113.52.16.0/20	JCOM Co., Ltd.	4,096
113.61.112.0/20	JCOM Co., Ltd.	4,096
114.134.112.0/20	JCOM Co., Ltd.	4,096
114.198.192.0/20	JCOM Co., Ltd.	4,096
114.198.208.0/20	JCOM Co., Ltd.	4,096
115.42.96.0/20	JCOM Co., Ltd.	4,096
123.98.224.0/20	JCOM Co., Ltd.	4,096
123.98.240.0/20	JCOM Co., Ltd.	4,096
180.92.32.0/20	JCOM Co., Ltd.	4,096
180.92.48.0/20	JCOM Co., Ltd.	4,096
180.149.160.0/20	JCOM Co., Ltd.	4,096
180.149.176.0/20	JCOM Co., Ltd.	4,096
182.50.192.0/20	JCOM Co., Ltd.	4,096
182.50.208.0/20	JCOM Co., Ltd.	4,096
182.50.224.0/20	JCOM Co., Ltd.	4,096
202.43.16.0/20	JCOM Co., Ltd.	4,096
202.72.64.0/20	JCOM Co., Ltd.	4,096
202.78.176.0/20	JCOM Co., Ltd.	4,096
202.178.80.0/20	JCOM Co., Ltd.	4,096
203.89.32.0/20	Jupiter Telecommunications Co., Ltd.	4,096
203.89.48.0/20	JCOM Co., Ltd.	4,096
203.124.64.0/20	JCOM Co., Ltd.	4,096
203.124.80.0/20	JCOM Co., Ltd.	4,096
210.135.192.0/20	JCOM Co., Ltd.	4,096
210.135.208.0/20	JCOM Co., Ltd.	4,096
210.172.240.0/20	JCOM Co., Ltd.	4,096
211.19.208.0/20	JCOM Co., Ltd.	4,096
218.219.80.0/20	JCOM Co., Ltd.	4,096
219.112.192.0/20	Jupiter Telecommunications Co., Ltd.	4,096
219.112.208.0/20	Jupiter Telecommunications Co., Ltd.	4,096
219.113.96.0/20	JCOM Co., Ltd.	4,096
219.117.0.0/20	JCOM Co., Ltd.	4,096
219.117.160.0/20	Jupiter Telecommunications Co., Ltd.	4,096
219.117.176.0/20	Jupiter Telecommunications Co., Ltd.	4,096
219.124.224.0/20	Jupiter Telecommunications Co., Ltd.	4,096
219.124.240.0/20	Jupiter Telecommunications Co., Ltd.	4,096
223.165.32.0/20	JCOM Co., Ltd.	4,096
223.165.48.0/20	JCOM Co., Ltd.	4,096
110.4.48.0/21	JCOM Co., Ltd.	2,048
110.4.56.0/21	JCOM Co., Ltd.	2,048
110.92.80.0/21	JCOM Co., Ltd.	2,048
110.92.88.0/21	JCOM Co., Ltd.	2,048
110.93.0.0/21	JCOM Co., Ltd.	2,048
110.173.240.0/21	Jupiter Telecommunications Co., Ltd.	2,048
110.173.248.0/21	Jupiter Telecommunications Co., Ltd.	2,048
110.232.128.0/21	JCOM Co., Ltd.	2,048
112.137.32.0/21	JCOM Co., Ltd.	2,048
112.137.40.0/21	JCOM Co., Ltd.	2,048
113.52.16.0/21	JCOM Co., Ltd.	2,048
113.52.24.0/21	JCOM Co., Ltd.	2,048
113.61.112.0/21	JCOM Co., Ltd.	2,048
113.61.120.0/21	JCOM Co., Ltd.	2,048
114.134.112.0/21	JCOM Co., Ltd.	2,048
114.134.120.0/21	JCOM Co., Ltd.	2,048
114.142.128.0/21	JCOM Co., Ltd.	2,048
114.198.224.0/21	JCOM Co., Ltd.	2,048
115.42.96.0/21	JCOM Co., Ltd.	2,048
115.42.104.0/21	JCOM Co., Ltd.	2,048
182.50.224.0/21	JCOM Co., Ltd.	2,048
182.50.232.0/21	JCOM Co., Ltd.	2,048
202.43.16.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.43.24.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.72.64.0/21	JCOM Co., Ltd.	2,048
202.72.72.0/21	JCOM Co., Ltd.	2,048
202.78.176.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.78.184.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.83.184.0/21	JCOM Co., Ltd.	2,048
202.178.80.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.178.88.0/21	Jupiter Telecommunications Co., Ltd.	2,048
210.172.240.0/21	Jupiter Telecommunications Co., Ltd.	2,048
210.172.248.0/21	Jupiter Telecommunications Co., Ltd.	2,048
211.19.208.0/21	JCOM Co., Ltd.	2,048
211.19.216.0/21	JCOM Co., Ltd.	2,048
218.219.80.0/21	JCOM Co., Ltd.	2,048
218.219.88.0/21	JCOM Co., Ltd.	2,048
219.113.96.0/21	JCOM Co., Ltd.	2,048
219.113.104.0/21	JCOM Co., Ltd.	2,048
219.117.0.0/21	Jupiter Telecommunications Co., Ltd.	2,048
219.117.8.0/21	Jupiter Telecommunications Co., Ltd.	2,048
223.223.208.0/21	JCOM Co., Ltd.	2,048
110.93.0.0/22	JCOM Co., Ltd.	1,024
110.93.4.0/22	JCOM Co., Ltd.	1,024
110.232.128.0/22	JCOM Co., Ltd.	1,024
110.232.132.0/22	JCOM Co., Ltd.	1,024
114.142.128.0/22	JCOM Co., Ltd.	1,024
114.142.132.0/22	JCOM Co., Ltd.	1,024
114.198.224.0/22	JCOM Co., Ltd.	1,024
114.198.228.0/22	JCOM Co., Ltd.	1,024
175.103.12.0/22	JCOM Co., Ltd.	1,024
202.43.68.0/22	JCOM Co., Ltd.	1,024
202.83.184.0/22	JCOM Co., Ltd.	1,024
202.83.188.0/22	Jupiter Telecommunications Co., Ltd.	1,024
203.114.248.0/22	JCOM Co., Ltd.	1,024
203.153.56.0/22	JCOM Co., Ltd.	1,024
223.165.20.0/22	JCOM Co., Ltd.	1,024
223.223.208.0/22	JCOM Co., Ltd.	1,024
223.223.212.0/22	JCOM Co., Ltd.	1,024
175.103.12.0/23	JCOM Co., Ltd.	512
175.103.14.0/23	JCOM Co., Ltd.	512
202.43.68.0/23	JCOM Co., Ltd.	512
202.43.70.0/23	JCOM Co., Ltd.	512
203.114.248.0/23	JCOM Co., Ltd.	512
203.114.250.0/23	JCOM Co., Ltd.	512
203.153.56.0/23	JCOM Co., Ltd.	512
203.153.58.0/23	JCOM Co., Ltd.	512
223.165.20.0/23	JCOM Co., Ltd.	512
223.165.22.0/23	JCOM Co., Ltd.	512

Netblock	Company
2001:c30::/32	JCOM Co., Ltd.

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WHOIS Details

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                                                ASHandle:       AS4721
                                                OrgID:          AS4721
                                                ASName:         AS4721
                                                ASNumber:       AS4721
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 57 domain names hosted across 57 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
14.193.213.10	██████████	3
118.87.177.239	██████████	2
110.4.56.254	█████████	2
223.223.211.235	██████████	1
118.87.244.202	██████████	1
14.193.213.20	██████████	1
118.83.236.234	██████████	1
118.83.162.4	██████████	1
182.50.233.70	██████████	1
202.78.180.1	██████████	1

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Peers

There is 1 peer for this ASN.

Peers	Name
AS9824	JCOM Co., Ltd.

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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS9824	JCOM Co., Ltd.

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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

1,871 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
118.86.80.1	AS4721 JCOM Co., Ltd.	`3.77ms` from Tokyo, JP
118.86.237.81	AS4721 JCOM Co., Ltd.	`9.77ms` from Tokyo, JP
220.208.68.1	AS4721 JCOM Co., Ltd.	`2.26ms` from Tokyo, JP
118.87.45.206	AS4721 JCOM Co., Ltd.	`11.68ms` from Tokyo, JP
14.193.72.1	AS4721 JCOM Co., Ltd.	`3.21ms` from Tokyo, JP
110.173.245.233	AS4721 JCOM Co., Ltd.	`8.24ms` from Tokyo, JP
221.132.169.19	AS4721 JCOM Co., Ltd.	`12.96ms` from Tokyo, JP
118.87.20.1	AS4721 JCOM Co., Ltd.	`3.85ms` from Tokyo, JP
14.193.31.95	AS4721 JCOM Co., Ltd.	`10.68ms` from Tokyo, JP
122.255.197.51	AS4721 JCOM Co., Ltd.	`5.79ms` from Tokyo, JP
118.86.81.202	AS4721 JCOM Co., Ltd.	`10.52ms` from Tokyo, JP
118.83.33.218	AS4721 JCOM Co., Ltd.	`13.38ms` from Tokyo, JP
122.255.201.197	AS4721 JCOM Co., Ltd.	`11.32ms` from Tokyo, JP
110.232.131.69	AS4721 JCOM Co., Ltd.	`7.83ms` from Tokyo, JP
116.70.183.147	AS4721 JCOM Co., Ltd.	`12.17ms` from Tokyo, JP
118.86.222.204	AS4721 JCOM Co., Ltd.	`11.44ms` from Tokyo, JP
118.86.192.1	AS4721 JCOM Co., Ltd.	`2.87ms` from Tokyo, JP
118.83.206.150	AS4721 JCOM Co., Ltd.	`13.27ms` from Tokyo, JP
14.193.77.199	AS4721 JCOM Co., Ltd.	`9.96ms` from Tokyo, JP
221.132.149.39	AS4721 JCOM Co., Ltd.	`12.08ms` from Tokyo, JP
118.87.54.3	AS4721 JCOM Co., Ltd.	`9.87ms` from Tokyo, JP
14.193.152.1	AS4721 JCOM Co., Ltd.	`3.51ms` from Tokyo, JP
110.232.130.1	AS4721 JCOM Co., Ltd.	`3.84ms` from Tokyo, JP
118.86.29.237	AS4721 JCOM Co., Ltd.	`15.00ms` from Tokyo, JP
203.124.69.55	AS4721 JCOM Co., Ltd.	`13.01ms` from Tokyo, JP

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
3.81.213.129	AS14618 Amazon.com, Inc.	`0.90ms` from Ashburn, US
65.246.54.1	AS26097 Labyrinth Solutions Inc	`4.84ms` from Ashburn, US
64.79.60.193	AS393713 All Points Broadband	`0.41ms` from Ashburn, US
67.238.92.129	AS5778 CenturyLink Communications, LLC	`14.79ms` from Ashburn, US
35.131.144.81	AS20115 Charter Communications LLC	`4.31ms` from Atlanta, US
60.27.87.17	AS4837 CHINA UNICOM China169 Backbone	`4.08ms` from Beijing, CN
110.253.157.161	AS4837 CHINA UNICOM China169 Backbone	`5.58ms` from Beijing, CN
212.146.104.49	AS5606 GTS Telecom SRL	`0.34ms` from Bucharest, RO
175.11.4.1	AS4134 CHINANET-BACKBONE	`3.66ms` from Changsha, CN
175.101.89.1	AS17754 Excellmedia	`8.11ms` from Chennai, IN
201.68.226.1	AS27699 TELEFÔNICA BRASIL S.A	`14.88ms` from Curitiba, BR
182.60.192.97	AS9829 National Internet Backbone	`11.77ms` from Delhi, IN
103.103.239.81	AS131183 Empowering Net (epnet)	`3.86ms` from Dhaka, BD
194.24.242.1	AS12843 TelemaxX Telekommunikation GmbH	`2.31ms` from Frankfurt am Main, DE
113.72.120.1	AS4134 CHINANET-BACKBONE	`6.18ms` from Guangzhou, CN
111.45.18.17	AS9808 China Mobile Communications Group Co., Ltd.	`4.42ms` from Guangzhou, CN
175.30.140.1	AS4134 CHINANET-BACKBONE	`17.33ms` from Harbin, CN
85.156.69.81	AS719 Elisa Oyj	`2.99ms` from Helsinki, FI
45.205.20.1	AS141159 Incomparable(HK)Network Co., Limited	`1.96ms` from Hong Kong, HK
69.192.171.129	AS32787 Akamai Technologies, Inc.	`0.25ms` from Hong Kong, HK
125.240.94.17	AS17858 LG POWERCOMM	`3.07ms` from Incheon, KR
211.174.230.1	AS4663 ELIMNET, INC.	`6.02ms` from Incheon, KR
61.105.169.1	AS9318 SK Broadband Co Ltd	`5.82ms` from Incheon, KR
103.154.113.1	AS131111 PT Mora Telematika Indonesia	`10.76ms` from Jakarta, ID
193.106.137.145	AS25521 Industrial Media Network LLC	`0.13ms` from Kyiv, UA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -m5 112.137.111.232

traceroute to 112.137.111.232 (112.137.111.232): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 9.128 ms

2 [AS41371] 88.151.180.149 0.96 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On March 13th 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS4721 at robtex.

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