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 52 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
14.193.239.74	██████████	2
220.208.123.94	██████████	1
202.78.180.1	██████████	1
14.193.213.20	██████████	1
122.255.217.66	██████████	1
118.83.45.199	██████████	1
118.83.98.6	██████████	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

1,961 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
219.117.183.35	AS4721 JCOM Co., Ltd.	`11.12ms` from Tokyo, JP
116.70.151.84	AS4721 JCOM Co., Ltd.	`10.64ms` from Tokyo, JP
123.98.230.3	AS4721 JCOM Co., Ltd.	`11.24ms` from Tokyo, JP
211.19.209.196	AS4721 JCOM Co., Ltd.	`12.96ms` from Tokyo, JP
111.90.12.1	AS4721 JCOM Co., Ltd.	`2.83ms` from Tokyo, JP
118.86.90.223	AS4721 JCOM Co., Ltd.	`12.95ms` from Tokyo, JP
114.142.132.1	AS4721 JCOM Co., Ltd.	`3.89ms` from Tokyo, JP
118.83.117.159	AS4721 JCOM Co., Ltd.	`17.90ms` from Tokyo, JP
114.134.231.227	AS4721 JCOM Co., Ltd.	`13.19ms` from Tokyo, JP
14.193.63.50	AS4721 JCOM Co., Ltd.	`10.31ms` from Tokyo, JP
203.89.44.1	AS4721 JCOM Co., Ltd.	`3.97ms` from Tokyo, JP
118.83.11.233	AS4721 JCOM Co., Ltd.	`13.48ms` from Tokyo, JP
14.193.226.232	AS4721 JCOM Co., Ltd.	`10.87ms` from Tokyo, JP
118.87.34.128	AS4721 JCOM Co., Ltd.	`11.37ms` from Tokyo, JP
61.203.249.145	AS4721 JCOM Co., Ltd.	`2.62ms` from Tokyo, JP
210.135.219.118	AS4721 JCOM Co., Ltd.	`12.40ms` from Tokyo, JP
114.134.243.144	AS4721 JCOM Co., Ltd.	`13.65ms` from Tokyo, JP
118.87.121.96	AS4721 JCOM Co., Ltd.	`13.23ms` from Tokyo, JP
110.232.20.1	AS4721 JCOM Co., Ltd.	`2.75ms` from Tokyo, JP
111.90.37.212	AS4721 JCOM Co., Ltd.	`11.68ms` from Tokyo, JP
220.208.78.231	AS4721 JCOM Co., Ltd.	`11.82ms` from Tokyo, JP
14.193.38.1	AS4721 JCOM Co., Ltd.	`4.23ms` from Tokyo, JP
14.193.24.1	AS4721 JCOM Co., Ltd.	`3.96ms` from Tokyo, JP
118.87.136.1	AS4721 JCOM Co., Ltd.	`2.46ms` from Tokyo, JP
116.70.175.89	AS4721 JCOM Co., Ltd.	`11.54ms` 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
209.237.174.1	AS396006 SPITwSPOTS	`4.41ms` from Anchorage, US
100.36.54.1	AS701 Verizon Business	`1.81ms` from Ashburn, US
12.15.176.33	AS7018 AT&T Enterprises, LLC	`13.31ms` from Atlanta, US
213.23.1.129	AS3209 Vodafone GmbH	`10.14ms` from Berlin, DE
34.221.101.65	AS16509 Amazon.com, Inc.	`0.51ms` from Boardman, US
45.226.112.193	AS265861 SISTEMAS SATELITALES DE COLOMBIA SA ESP	`0.88ms` from Bogota, CO
186.114.240.1	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`1.32ms` from Bogota, CO
181.78.65.177	AS52468 UFINET PANAMA S.A.	`0.78ms` from Bogota, CO
85.201.229.1	AS12392 VOO S.A.	`2.80ms` from Brussels, BE
85.26.29.1	AS12392 VOO S.A.	`2.63ms` from Brussels, BE
78.23.174.1	AS6848 Telenet BV	`4.06ms` from Brussels, BE
212.146.104.49	AS5606 GTS Telecom SRL	`0.33ms` from Bucharest, RO
13.106.16.1	AS8075 Microsoft Corporation	`0.61ms` from Cardiff, GB
98.26.92.65	AS11426 Charter Communications Inc	`8.72ms` from Charlotte, US
141.166.32.97	AS20105 University of Richmond	`11.21ms` from Charlotte, US
216.136.12.97	AS3549 Level 3 Parent, LLC	`0.55ms` from Charlotte, US
182.128.50.1	AS4134 CHINANET-BACKBONE	`8.61ms` from Chengdu, CN
24.231.245.1	AS20115 Charter Communications LLC	`5.47ms` from Chicago, US
24.172.192.193	AS10796 Charter Communications Inc	`6.22ms` from Columbus, US
24.144.17.1	AS12231 Conway Corporation	`11.17ms` from Dallas, US
208.66.150.17	AS13823 Mesh.Net	`0.24ms` from Dallas, US
24.53.188.1	AS13490 Buckeye Cablevision, Inc.	`5.00ms` from Detroit, US
86.43.219.33	AS5466 Eircom Limited	`1.36ms` from Dublin, IE
105.225.240.1	AS37457 Telkom SA Ltd.	`1.78ms` from Durban, ZA
188.92.112.129	AS12337 noris network AG	`5.76ms` 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 112.137.35.44

traceroute to 112.137.35.44 (112.137.35.44): 5 hops max, 52 byte packets

1 [AS209847] 2.56.177.1 3.333 ms

2 [AS200590] 5.188.152.1 0.601 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Almaty, KZ

On December 6th 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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