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
118.87.153.144	AS4721 JCOM Co., Ltd.	`12.36ms` from Tokyo, JP
219.117.3.100	AS4721 JCOM Co., Ltd.	`11.77ms` from Tokyo, JP
219.124.247.129	AS4721 JCOM Co., Ltd.	`2.99ms` from Tokyo, JP
202.83.186.1	AS4721 JCOM Co., Ltd.	`3.20ms` from Tokyo, JP
14.193.183.12	AS4721 JCOM Co., Ltd.	`12.03ms` from Tokyo, JP
61.203.239.124	AS4721 JCOM Co., Ltd.	`11.94ms` from Tokyo, JP
118.83.20.1	AS4721 JCOM Co., Ltd.	`2.76ms` from Tokyo, JP
112.137.98.201	AS4721 JCOM Co., Ltd.	`11.27ms` from Tokyo, JP
14.193.64.1	AS4721 JCOM Co., Ltd.	`2.32ms` from Tokyo, JP
114.134.205.121	AS4721 JCOM Co., Ltd.	`9.25ms` from Tokyo, JP
220.208.107.81	AS4721 JCOM Co., Ltd.	`10.33ms` from Tokyo, JP
14.193.230.26	AS4721 JCOM Co., Ltd.	`13.14ms` from Tokyo, JP
122.255.134.179	AS4721 JCOM Co., Ltd.	`12.13ms` from Tokyo, JP
14.193.188.1	AS4721 JCOM Co., Ltd.	`2.80ms` from Tokyo, JP
203.89.57.124	AS4721 JCOM Co., Ltd.	`9.69ms` from Tokyo, JP
210.135.211.133	AS4721 JCOM Co., Ltd.	`10.11ms` from Tokyo, JP
116.70.171.184	AS4721 JCOM Co., Ltd.	`11.14ms` from Tokyo, JP
123.98.225.230	AS4721 JCOM Co., Ltd.	`11.51ms` from Tokyo, JP
114.134.124.1	AS4721 JCOM Co., Ltd.	`3.22ms` from Tokyo, JP
110.4.60.1	AS4721 JCOM Co., Ltd.	`4.00ms` from Tokyo, JP
118.83.163.39	AS4721 JCOM Co., Ltd.	`11.49ms` from Tokyo, JP
221.132.169.188	AS4721 JCOM Co., Ltd.	`13.90ms` from Tokyo, JP
118.87.194.86	AS4721 JCOM Co., Ltd.	`10.75ms` from Tokyo, JP
118.83.216.1	AS4721 JCOM Co., Ltd.	`2.68ms` from Tokyo, JP
118.83.57.187	AS4721 JCOM Co., Ltd.	`10.64ms` 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
178.85.77.1	AS33915 Vodafone Libertel B.V.	`6.25ms` from Amsterdam, NL
4.30.38.49	AS3356 Level 3 Parent, LLC	`0.46ms` from Ashburn, US
70.191.204.1	AS22773 Cox Communications Inc.	`16.13ms` from Atlanta, US
110.171.134.1	AS17552 True Online	`0.82ms` from Bangkok, TH
44.31.100.1	AS56309 Siamdata Communication Co.,Ltd.	`0.79ms` from Bangkok, TH
181.57.168.65	AS14080 Telmex Colombia S.A.	`0.48ms` from Bogotá, CO
68.154.44.225	AS8075 Microsoft Corporation	`1.00ms` from Boydton, US
201.190.244.1	AS28075 ARLINK S.A.	`16.34ms` from Buenos Aires, AR
201.221.120.129	AS52394 INTERBANKING S.A.	`1.06ms` from Buenos Aires, AR
181.164.120.1	AS7303 Telecom Argentina S.A.	`7.54ms` from Buenos Aires, AR
162.157.221.1	AS852 TELUS Communications Inc.	`0.89ms` from Calgary, CA
165.73.117.1	AS37611 AFRIHOST SP (PTY) LTD	`1.11ms` from Cape Town, ZA
122.165.238.1	AS24560 Bharti Airtel Ltd., Telemedia Services	`1.06ms` from Chennai, IN
24.214.222.1	AS12083 WideOpenWest Finance LLC	`7.30ms` from Chicago, US
66.114.185.1	AS17306 JAB Wireless, INC.	`4.84ms` from Chicago, US
216.152.57.1	AS26328 Blast Communications Inc.	`2.15ms` from Chicago, US
40.129.7.145	AS7029 Windstream Communications LLC	`8.16ms` from Chicago, US
76.10.199.1	AS11013 WideOpenWest Finance LLC	`3.80ms` from Cincinnati, US
91.100.56.129	AS15516 DKTV A/S	`0.72ms` from Copenhagen, DK
50.58.11.17	AS11273 Fiserv Solutions, LLC	`1.26ms` from Dallas, US
75.159.91.1	AS852 TELUS Communications Inc.	`2.43ms` from Edmonton, CA
200.151.99.241	AS7738 V tal	`7.53ms` from Fortaleza, BR
31.58.156.1	AS214677 Matteo Martelloni trading as DELUXHOST	`0.60ms` from Frankfurt am Main, DE
208.66.111.1	AS215607 dataforest GmbH	`0.70ms` from Frankfurt am Main, DE
84.23.83.1	AS35366 ISPpro Internet KG	`8.15ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m5 14.193.156.152

traceroute to 14.193.156.152 (14.193.156.152): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 4.194 ms

2 [AS41371] 88.151.180.149 0.464 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, 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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