AS number details

AS4721

JCOM Co., Ltd. · jcom.co.jp

Japan

bittorrent

stub_as

vpn

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AS4721 – JCOM Co., Ltd.

Field	Value
Country	Japan
Website	jcom.co.jp
Hosted domains	53
Number of IPv4	631,808
Number of IPv6	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
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
14.193.0.0/16	JCOM Co., Ltd.	65,536
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
14.193.0.0/17	JCOM Co., Ltd.	32,768
14.193.128.0/17	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
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
180.149.160.0/19	JCOM Co., Ltd.	8,192
180.92.32.0/19	JCOM Co., Ltd.	8,192
182.50.192.0/19	JCOM Co., Ltd.	8,192
203.124.64.0/19	JCOM Co., Ltd.	8,192
203.89.32.0/19	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
61.203.224.0/19	JCOM Co., Ltd.	8,192
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
110.4.48.0/20	JCOM Co., Ltd.	4,096
110.92.80.0/20	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
180.149.160.0/20	JCOM Co., Ltd.	4,096
180.149.176.0/20	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
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
202.178.80.0/20	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
203.124.64.0/20	JCOM Co., Ltd.	4,096
203.124.80.0/20	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
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
61.203.224.0/20	Jupiter Telecommunications Co., Ltd.	4,096
61.203.240.0/20	Jupiter Telecommunications Co., Ltd.	4,096
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
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
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
115.42.104.0/21	JCOM Co., Ltd.	2,048
115.42.96.0/21	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
202.178.80.0/21	Jupiter Telecommunications Co., Ltd.	2,048
202.178.88.0/21	Jupiter Telecommunications 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
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
219.113.104.0/21	JCOM Co., Ltd.	2,048
219.113.96.0/21	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
110.232.128.0/22	JCOM Co., Ltd.	1,024
110.232.132.0/22	JCOM Co., Ltd.	1,024
110.93.0.0/22	JCOM Co., Ltd.	1,024
110.93.4.0/22	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 53 domain names hosted across 51 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
118.83.232.199	██████████	1
182.50.233.70	██████████	1
118.86.5.114	██████████	1
118.87.56.138	██████████	1
118.83.45.199	██████████	1
61.203.244.235	██████████	1
118.87.53.218	██████████	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

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Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS9824	JCOM Co., Ltd.

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ASN API

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Downstreams

There are no downstreams for this ASN.

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ASN API

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Pingable IPs

1,984 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.89.43.51	AS4721 JCOM Co., Ltd.	`13.18ms` from Tokyo, JP
203.124.77.77	AS4721 JCOM Co., Ltd.	`10.02ms` from Tokyo, JP
112.137.97.209	AS4721 JCOM Co., Ltd.	`12.47ms` from Tokyo, JP
203.124.95.71	AS4721 JCOM Co., Ltd.	`9.18ms` from Tokyo, JP
111.90.9.113	AS4721 JCOM Co., Ltd.	`9.55ms` from Tokyo, JP
118.86.207.248	AS4721 JCOM Co., Ltd.	`12.48ms` from Tokyo, JP
118.87.87.46	AS4721 JCOM Co., Ltd.	`12.93ms` from Tokyo, JP
111.90.108.1	AS4721 JCOM Co., Ltd.	`3.65ms` from Tokyo, JP
122.255.137.6	AS4721 JCOM Co., Ltd.	`12.13ms` from Tokyo, JP
221.132.130.43	AS4721 JCOM Co., Ltd.	`12.89ms` from Tokyo, JP
118.87.123.186	AS4721 JCOM Co., Ltd.	`12.80ms` from Tokyo, JP
220.208.65.1	AS4721 JCOM Co., Ltd.	`2.90ms` from Tokyo, JP
14.193.207.26	AS4721 JCOM Co., Ltd.	`10.88ms` from Tokyo, JP
118.87.39.101	AS4721 JCOM Co., Ltd.	`13.06ms` from Tokyo, JP
118.86.34.202	AS4721 JCOM Co., Ltd.	`7.02ms` from Tokyo, JP
111.90.119.202	AS4721 JCOM Co., Ltd.	`12.79ms` from Tokyo, JP
14.193.72.1	AS4721 JCOM Co., Ltd.	`3.68ms` from Tokyo, JP
118.86.179.234	AS4721 JCOM Co., Ltd.	`9.46ms` from Tokyo, JP
118.87.41.66	AS4721 JCOM Co., Ltd.	`7.46ms` from Tokyo, JP
14.193.56.1	AS4721 JCOM Co., Ltd.	`3.89ms` from Tokyo, JP
110.232.2.226	AS4721 JCOM Co., Ltd.	`2.50ms` from Tokyo, JP
122.255.215.160	AS4721 JCOM Co., Ltd.	`11.59ms` from Tokyo, JP
61.203.243.154	AS4721 JCOM Co., Ltd.	`13.47ms` from Tokyo, JP
118.87.81.213	AS4721 JCOM Co., Ltd.	`7.17ms` from Tokyo, JP
118.87.226.67	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
80.252.87.97	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.51ms` from Amsterdam, NL
217.103.190.1	AS33915 Vodafone Libertel B.V.	`4.29ms` from Amsterdam, NL
24.151.100.1	AS20115 Charter Communications LLC	`10.54ms` from Ashburn, US
76.161.136.193	AS7029 Windstream Communications LLC	`0.53ms` from Ashburn, US
50.151.31.49	AS7922 Comcast Cable Communications, LLC	`3.02ms` from Ashburn, US
20.119.45.97	AS8075 Microsoft Corporation	`0.49ms` from Ashburn, US
61.91.3.1	AS9287 True Internet Data Center Company Limited	`1.19ms` from Bangkok, TH
188.81.116.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`1.54ms` from Braga, PT
190.18.172.1	AS7303 Telecom Argentina S.A.	`1.36ms` from Buenos Aires, AR
196.74.120.1	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`6.60ms` from Casablanca, MA
222.210.118.1	AS4134 CHINANET-BACKBONE	`4.43ms` from Chengdu, CN
24.192.229.1	AS12083 WideOpenWest Finance LLC	`7.21ms` from Chicago, US
67.149.64.1	AS12083 WideOpenWest Finance LLC	`8.37ms` from Chicago, US
23.12.9.17	AS16625 Akamai Technologies, Inc.	`0.19ms` from Chicago, US
172.222.96.1	AS20115 Charter Communications LLC	`5.10ms` from Chicago, US
208.46.35.177	AS209 CenturyLink Communications, LLC	`1.89ms` from Chicago, US
216.152.57.1	AS26328 Blast Communications Inc.	`1.82ms` from Chicago, US
186.139.90.1	AS7303 Telecom Argentina S.A.	`0.69ms` from Cordoba, AR
58.2.20.1	AS17466 Genpact India Private Limited	`1.94ms` from Delhi, IN
50.229.219.113	AS7922 Comcast Cable Communications, LLC	`1.15ms` from Denver, US
86.41.28.1	AS5466 Eircom Limited	`2.87ms` from Dublin, IE
60.187.25.129	AS4134 CHINANET-BACKBONE	`6.27ms` from Hangzhou, CN
41.117.160.193	AS12091 MTN SA	`18.91ms` from Johannesburg, ZA
45.222.199.65	AS37282 Mainone Cable Company	`7.15ms` from Lagos, NG
81.193.46.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.97ms` from Lisbon, PT

Traceroute

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

traceroute -a -n -q1 -m5 114.134.219.105

traceroute to 114.134.219.105 (114.134.219.105): 5 hops max, 52 byte packets

1 [AS31898] 140.91.242.4 0.076 ms

2 [AS15802] 91.74.125.170 0.309 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Abu Dhabi, AE

On August 22nd 2025

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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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