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	55
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 55 domain names hosted across 54 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
111.90.50.74	██████████	1
118.86.255.242	██████████	1
111.90.125.173	██████████	1
202.78.180.1	██████████	1
110.93.0.156	██████████	1
118.86.34.139	██████████	1
115.42.98.95	█████████	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

1,902 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
202.178.95.7	AS4721 JCOM Co., Ltd.	`1.66ms` from Osaka, JP
61.203.232.1	AS4721 JCOM Co., Ltd.	`2.01ms` from Tokyo, JP
122.255.203.235	AS4721 JCOM Co., Ltd.	`11.44ms` from Tokyo, JP
112.137.38.10	AS4721 JCOM Co., Ltd.	`9.88ms` from Tokyo, JP
14.193.36.1	AS4721 JCOM Co., Ltd.	`4.30ms` from Tokyo, JP
110.232.21.99	AS4721 JCOM Co., Ltd.	`12.32ms` from Tokyo, JP
118.86.80.1	AS4721 JCOM Co., Ltd.	`2.40ms` from Tokyo, JP
112.137.66.222	AS4721 JCOM Co., Ltd.	`8.43ms` from Tokyo, JP
110.232.130.1	AS4721 JCOM Co., Ltd.	`3.65ms` from Tokyo, JP
118.86.196.1	AS4721 JCOM Co., Ltd.	`4.29ms` from Tokyo, JP
114.134.124.1	AS4721 JCOM Co., Ltd.	`4.24ms` from Tokyo, JP
14.193.182.15	AS4721 JCOM Co., Ltd.	`12.11ms` from Tokyo, JP
118.87.44.1	AS4721 JCOM Co., Ltd.	`4.36ms` from Tokyo, JP
118.83.122.60	AS4721 JCOM Co., Ltd.	`13.49ms` from Tokyo, JP
221.132.189.241	AS4721 JCOM Co., Ltd.	`8.72ms` from Tokyo, JP
221.132.183.54	AS4721 JCOM Co., Ltd.	`10.03ms` from Tokyo, JP
111.90.72.1	AS4721 JCOM Co., Ltd.	`3.73ms` from Tokyo, JP
118.83.26.197	AS4721 JCOM Co., Ltd.	`10.47ms` from Tokyo, JP
122.255.156.1	AS4721 JCOM Co., Ltd.	`4.08ms` from Tokyo, JP
202.72.66.203	AS4721 JCOM Co., Ltd.	`12.08ms` from Tokyo, JP
14.193.238.209	AS4721 JCOM Co., Ltd.	`9.72ms` from Tokyo, JP
122.255.244.1	AS4721 JCOM Co., Ltd.	`4.33ms` from Tokyo, JP
118.83.219.126	AS4721 JCOM Co., Ltd.	`11.78ms` from Tokyo, JP
180.149.165.8	AS4721 JCOM Co., Ltd.	`10.86ms` from Tokyo, JP
116.70.131.146	AS4721 JCOM Co., Ltd.	`11.91ms` 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
77.250.98.1	AS33915 Vodafone Libertel B.V.	`3.36ms` from Amsterdam, NL
68.117.220.1	AS20115 Charter Communications LLC	`4.00ms` from Atlanta, US
24.112.84.1	AS35986 Vyve Broadband	`4.07ms` from Atlanta, US
101.26.203.1	AS4837 CHINA UNICOM China169 Backbone	`14.10ms` from Beijing, CN
62.235.103.1	AS5432 Proximus NV	`1.17ms` from Brussels, BE
102.41.202.1	AS8452 TE-AS	`7.80ms` from Cairo, EG
207.34.89.1	AS852 TELUS Communications Inc.	`4.57ms` from Calgary, CA
117.200.208.1	AS9829 National Internet Backbone	`15.76ms` from Chennai, IN
204.153.61.33	AS10991 CAPGEMINI AMERICA, INC.	`1.32ms` from Chicago, US
99.9.41.17	AS7018 AT&T Enterprises, LLC	`6.58ms` from Chicago, US
191.243.200.17	AS263512 CTBA TELECOM	`1.32ms` from Curitiba, BR
209.44.207.1	AS17306 JAB Wireless, INC.	`8.57ms` from Dallas, US
71.131.67.17	AS7018 AT&T Enterprises, LLC	`3.34ms` from Dallas, US
97.121.175.113	AS209 CenturyLink Communications, LLC	`2.98ms` from Denver, US
193.19.183.1	AS24637 WEBDISCOUNT GmbH & Co. KG	`6.20ms` from Frankfurt am Main, DE
62.225.6.193	AS3320 Deutsche Telekom AG	`0.56ms` from Frankfurt am Main, DE
220.250.12.129	AS4837 CHINA UNICOM China169 Backbone	`6.89ms` from Fuzhou, CN
59.39.12.1	AS4134 CHINANET-BACKBONE	`4.11ms` from Guangzhou, CN
181.188.226.1	AS19114 Otecel S.A.	`1.50ms` from Guayaquil, EC
27.79.166.49	AS7552 Viettel Group	`0.69ms` from Hanoi, VN
171.250.26.129	AS7552 Viettel Group	`3.19ms` from Ho Chi Minh City, VN
113.29.229.145	AS38001 NewMedia Express Pte Ltd	`0.45ms` from Hong Kong, HK
154.207.68.97	AS63888 DATAWING LIMITED	`0.29ms` from Hong Kong, HK
103.181.76.1	AS149379 PT Kayangan Media Lombok	`18.67ms` from Jakarta, ID
35.177.8.241	AS16509 Amazon.com, Inc.	`0.14ms` 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 -m7 113.61.127.132

traceroute to 113.61.127.132 (113.61.127.132): 7 hops max, 52 byte packets

2 [AS6718] 128.0.34.101 0.433 ms

3 *

4 [AS6939] 184.104.189.67 10.779 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Bucharest, RO

On January 19th 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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