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

1,856 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
122.255.183.84	AS4721 JCOM Co., Ltd.	`11.47ms` from Tokyo, JP
110.232.22.138	AS4721 JCOM Co., Ltd.	`12.00ms` from Tokyo, JP
220.208.72.1	AS4721 JCOM Co., Ltd.	`2.23ms` from Tokyo, JP
61.203.245.133	AS4721 JCOM Co., Ltd.	`12.93ms` from Tokyo, JP
118.83.246.219	AS4721 JCOM Co., Ltd.	`11.52ms` from Tokyo, JP
118.83.122.60	AS4721 JCOM Co., Ltd.	`10.58ms` from Tokyo, JP
118.83.29.97	AS4721 JCOM Co., Ltd.	`12.37ms` from Tokyo, JP
203.124.89.163	AS4721 JCOM Co., Ltd.	`12.85ms` from Tokyo, JP
118.86.227.125	AS4721 JCOM Co., Ltd.	`12.37ms` from Tokyo, JP
219.112.201.242	AS4721 JCOM Co., Ltd.	`8.49ms` from Tokyo, JP
219.112.197.7	AS4721 JCOM Co., Ltd.	`5.30ms` from Tokyo, JP
118.87.159.205	AS4721 JCOM Co., Ltd.	`13.38ms` from Tokyo, JP
118.86.121.101	AS4721 JCOM Co., Ltd.	`11.78ms` from Tokyo, JP
14.193.80.1	AS4721 JCOM Co., Ltd.	`1.76ms` from Tokyo, JP
123.98.255.202	AS4721 JCOM Co., Ltd.	`13.12ms` from Tokyo, JP
118.83.251.246	AS4721 JCOM Co., Ltd.	`13.38ms` from Tokyo, JP
118.86.119.29	AS4721 JCOM Co., Ltd.	`12.37ms` from Tokyo, JP
118.87.242.73	AS4721 JCOM Co., Ltd.	`12.07ms` from Tokyo, JP
118.86.69.42	AS4721 JCOM Co., Ltd.	`12.28ms` from Tokyo, JP
112.137.91.122	AS4721 JCOM Co., Ltd.	`6.54ms` from Tokyo, JP
14.193.230.61	AS4721 JCOM Co., Ltd.	`13.53ms` from Tokyo, JP
118.87.143.185	AS4721 JCOM Co., Ltd.	`8.81ms` from Tokyo, JP
175.41.93.243	AS4721 JCOM Co., Ltd.	`11.74ms` from Tokyo, JP
118.87.226.225	AS4721 JCOM Co., Ltd.	`11.39ms` from Tokyo, JP
14.193.177.113	AS4721 JCOM Co., Ltd.	`12.40ms` 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
84.25.196.1	AS33915 Vodafone Libertel B.V.	`2.70ms` from Amsterdam, NL
82.217.241.1	AS33915 Vodafone Libertel B.V.	`2.05ms` from Amsterdam, NL
109.176.15.1	AS6079 RCN	`1.81ms` from Ashburn, US
68.115.146.17	AS20115 Charter Communications LLC	`4.67ms` from Atlanta, US
101.51.53.1	AS23969 TOT Public Company Limited	`6.79ms` from Bangkok, TH
116.132.105.33	AS4837 CHINA UNICOM China169 Backbone	`8.64ms` from Beijing, CN
121.28.221.1	AS4837 CHINA UNICOM China169 Backbone	`6.91ms` from Beijing, CN
23.57.51.145	AS16625 Akamai Technologies, Inc.	`0.24ms` from Bengaluru, IN
172.172.44.113	AS8075 Microsoft Corporation	`0.21ms` from Boydton, US
188.83.229.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`2.13ms` from Braga, PT
94.107.94.1	AS47377 Orange Belgium SA	`4.45ms` from Brussels, BE
190.18.172.1	AS7303 Telecom Argentina S.A.	`1.09ms` from Buenos Aires, AR
173.24.248.1	AS30036 Mediacom Communications Corp	`13.24ms` from Chicago, US
74.202.244.1	AS3549 Level 3 Parent, LLC	`9.40ms` from Chicago, US
12.160.165.129	AS7018 AT&T Enterprises, LLC	`7.90ms` from Chicago, US
174.101.0.1	AS10796 Charter Communications Inc	`17.03ms` from Cleveland, US
58.2.20.1	AS17466 Genpact India Private Limited	`1.88ms` from Delhi, IN
15.158.85.33	AS16509 Amazon.com, Inc.	`0.18ms` from Denver, US
78.101.206.1	AS8781 Ooredoo Q.S.C.	`0.22ms` from Doha, QA
20.174.184.33	AS8075 Microsoft Corporation	`0.40ms` from Dubai, AE
199.126.200.1	AS852 TELUS Communications Inc.	`1.22ms` from Edmonton, CA
68.49.167.17	AS7922 Comcast Cable Communications, LLC	`12.17ms` from Flint, US
190.155.100.1	AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC)	`3.08ms` from Guayaquil, EC
80.221.54.161	AS1759 Telia Finland Oyj	`1.37ms` from Helsinki, FI
34.1.210.81	AS19527 Google LLC	`0.10ms` from Johannesburg, ZA

Traceroute

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

traceroute -a -n -q1 -f3 118.83.74.40

traceroute to 118.83.74.40 (118.83.74.40): 64 hops max, 52 byte packets

3 [AS8966] 5.195.70.164 0.84 ms

4 [AS8966] 194.170.186.13 75.469 ms

5 [] 27.111.228.196 75.559 ms

6 [AS2497] 58.138.112.97 147.489 ms

7 [AS2497] 58.138.81.31 145.121 ms

8 [AS2497] 210.130.149.62 139.578 ms

9 [AS9824] 116.214.18.37 148.445 ms

10 *

11 *

12 *

13 [AS4721] 118.83.74.40 164.75 ms

Measurement taken from

IPinfo ProbeNet in Al Fujairah City, AE

On April 25th 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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