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	79,228,162,514,264,338,000,000,000,000
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
110.4.56.254	█████████	2
118.87.177.239	██████████	2
116.70.130.194	██████████	1
118.83.52.217	██████████	1
118.83.197.19	██████████	1
118.86.5.114	██████████	1
14.193.239.74	██████████	1
14.193.69.34	██████████	1
118.86.134.157	██████████	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

1,845 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
118.86.100.1	AS4721 JCOM Co., Ltd.	`3.89ms` from Tokyo, JP
123.98.228.1	AS4721 JCOM Co., Ltd.	`2.80ms` from Tokyo, JP
203.124.77.77	AS4721 JCOM Co., Ltd.	`10.03ms` from Tokyo, JP
118.86.62.229	AS4721 JCOM Co., Ltd.	`13.43ms` from Tokyo, JP
14.193.68.1	AS4721 JCOM Co., Ltd.	`2.98ms` from Tokyo, JP
14.193.225.196	AS4721 JCOM Co., Ltd.	`6.76ms` from Tokyo, JP
118.83.200.1	AS4721 JCOM Co., Ltd.	`2.99ms` from Tokyo, JP
14.193.23.241	AS4721 JCOM Co., Ltd.	`13.19ms` from Tokyo, JP
118.86.180.1	AS4721 JCOM Co., Ltd.	`3.77ms` from Tokyo, JP
14.193.106.23	AS4721 JCOM Co., Ltd.	`7.26ms` from Tokyo, JP
210.172.245.26	AS4721 JCOM Co., Ltd.	`7.94ms` from Tokyo, JP
14.193.189.26	AS4721 JCOM Co., Ltd.	`13.34ms` from Tokyo, JP
114.198.220.1	AS4721 JCOM Co., Ltd.	`3.83ms` from Tokyo, JP
118.83.201.127	AS4721 JCOM Co., Ltd.	`13.79ms` from Tokyo, JP
220.208.68.1	AS4721 JCOM Co., Ltd.	`2.26ms` from Tokyo, JP
118.87.251.107	AS4721 JCOM Co., Ltd.	`12.71ms` from Tokyo, JP
118.87.247.190	AS4721 JCOM Co., Ltd.	`12.47ms` from Tokyo, JP
180.92.44.1	AS4721 JCOM Co., Ltd.	`3.62ms` from Tokyo, JP
118.83.18.132	AS4721 JCOM Co., Ltd.	`8.02ms` from Tokyo, JP
116.70.175.111	AS4721 JCOM Co., Ltd.	`11.47ms` from Tokyo, JP
14.193.154.46	AS4721 JCOM Co., Ltd.	`13.48ms` from Tokyo, JP
61.203.230.1	AS4721 JCOM Co., Ltd.	`11.00ms` from Tokyo, JP
118.83.79.14	AS4721 JCOM Co., Ltd.	`11.79ms` from Tokyo, JP
118.83.132.1	AS4721 JCOM Co., Ltd.	`3.47ms` from Tokyo, JP
221.132.170.131	AS4721 JCOM Co., Ltd.	`12.01ms` 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
86.80.4.241	AS1136 KPN B.V.	`2.80ms` from Amsterdam, NL
71.114.5.1	AS701 Verizon Business	`3.43ms` from Ashburn, US
174.76.150.1	AS22773 Cox Communications Inc.	`16.29ms` from Atlanta, US
70.191.204.1	AS22773 Cox Communications Inc.	`16.13ms` from Atlanta, US
169.238.108.1	AS54804 CableSouth Media III LLC	`11.93ms` from Atlanta, US
107.134.3.17	AS7018 AT&T Enterprises, LLC	`7.00ms` from Atlanta, US
119.110.222.225	AS132280 Symphony Communication (Thailand) PCL.	`1.58ms` from Bangkok, TH
212.112.97.65	AS12764 AKNET Ltd.	`0.16ms` from Bishkek, KG
156.194.175.241	AS8452 TE-AS	`7.22ms` from Cairo, EG
201.139.175.1	AS61762 CONECTABR SISTEMAS DE COMUNICAÇÕES LTDA	`0.43ms` from Cascavel, BR
67.149.64.1	AS12083 WideOpenWest Finance LLC	`8.78ms` from Chicago, US
64.85.165.97	AS30517 Great Lakes Comnet, Inc.	`0.45ms` from Chicago, US
70.182.8.1	AS22773 Cox Communications Inc.	`10.50ms` from Dallas, US
98.96.141.1	AS36556 Wave Rural Connect, LLC	`10.37ms` from Dallas, US
85.96.234.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`13.21ms` from Denizli, TR
63.239.144.145	AS209 CenturyLink Communications, LLC	`2.31ms` from Denver, US
62.153.79.97	AS3320 Deutsche Telekom AG	`1.29ms` from Frankfurt am Main, DE
118.178.225.225	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.63ms` from Hangzhou, CN
183.165.42.1	AS4134 CHINANET BACKBONE	`6.56ms` from Huainan, CN
88.246.226.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`13.24ms` from Istanbul, TR
160.25.163.33	AS149662 PT Hostnet Data Global	`1.87ms` from Jakarta, ID
118.137.175.1	AS23700 Linknet-Fastnet ASN	`1.20ms` from Jakarta, ID
111.14.180.161	AS24444 Shandong Mobile Communication Company Limited	`6.46ms` from Jinan, CN
92.18.43.193	AS13285 TalkTalk Communications Limited	`3.73ms` from London, GB
212.169.36.129	AS8426 ClaraNET LTD	`1.20ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f2 -m6 122.255.251.207

traceroute to 122.255.251.207 (122.255.251.207): 6 hops max, 52 byte packets

2 [AS58061] 38.180.36.1 0.574 ms

3 [AS200590] 188.94.153.128 1.779 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

On April 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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