202.43.16.0/21

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	202.43.16.0/20
Registry	JPNIC
ID	JCOM-NET

WHOIS Details

inetnum:        202.43.16.0 - 202.43.23.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2015-12-26T01:17:15Z
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
source:         JPNIC

Overlapping Ranges

BGP prefixes that contain 202.43.16.0/21

Range	ASN	Company	Num of IPs
202.43.16.0/20	AS4721	JCOM Co., Ltd.	4,096

Nearby Ranges

BGP prefixes that overlap with 202.43.0.0/16

Range	ASN	Company	Num of IPs
202.43.16.0/20	AS4721	JCOM Co., Ltd.	4,096
202.43.24.0/21	AS4721	Jupiter Telecommunications Co., Ltd.	2,048
202.43.216.0/21	AS10310	Yahoo APAC	2,048
202.43.192.0/21	AS10229	Yahoo-TW1	2,048
202.43.240.0/21	AS18076	Institute of Advanced Media Arts and Sciences, University, Gifu, Japan	2,048
202.43.120.0/22	AS24186	RailTel Corporation is an Internet Service Provider.	1,024
202.43.108.0/22	AS45552	METASERV COMPANY LIMITED	1,024
202.43.92.0/22	AS45705	PPTIK - UNIVERSITAS GADJAH MADA.	1,024
202.43.68.0/22	AS4721	JCOM Co., Ltd.	1,024
202.43.114.0/23	AS139938	PT Tele Globe Global	512
202.43.114.0/23	AS45706	PT Tele Globe Global	512
202.43.114.0/23	AS45706	PT Tele Globe Global	512
202.43.114.0/23	AS139938	PT Tele Globe Global	512
202.43.80.0/23	AS45793	Newcastle City Council	512
202.43.173.0/24	AS18059	PT Graha Sarana Data	256
202.43.174.0/24	AS18059	PT Dwi Tunggal Putra	256
202.43.175.0/24	AS18059	IDNet Satelite Network	256
202.43.90.0/24	AS24222	RR Donnelley Philippines Inc	256
202.43.2.0/24	AS24541	Keltree Pty Ltd as trustee for The Kelly Family Trust t/a IBC Digital	256
202.43.67.0/24	AS45154	Appnomic Systems Pvt Ltd,	256
202.43.100.0/24	AS45785	Use for VOIP	256
202.43.101.0/24	AS45785	Use for VOIP	256
202.43.102.0/24	AS45785	SERVICE HOSTING	256
202.43.66.0/24	AS9268	Over the Wire Pty Ltd	256
202.43.231.0/24	AS9422	PT SOLNET INDONESIA	256
202.43.176.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.186.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.187.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.188.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.189.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.190.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.191.0/24	AS131111	PT. Mora Telematika Indonesia	256
202.43.83.0/24	AS131184	Block A, 7/F, Eastern Sea Industrial Building	256
202.43.239.0/24	AS133744	Vocom International Telecommunication Inc.v	256
202.43.224.0/24	AS137184	Suniway Group of Companies Inc.	256
202.43.225.0/24	AS137990	SUNIWAY GROUP LIMITED	256
202.43.226.0/24	AS137990	SUNIWAY GROUP LIMITED	256
202.43.227.0/24	AS149282	Kyushu Telecom Global Limited	256
202.43.169.0/24	AS18059	PT Graha Sarana Data	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

23 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
202.43.19.134	AS4721 JCOM Co., Ltd.	`14.13ms` from Tokyo, JP
202.43.16.1	AS4721 JCOM Co., Ltd.	`2.45ms` from Tokyo, JP
202.43.17.67	AS4721 JCOM Co., Ltd.	`11.45ms` from Tokyo, JP
202.43.18.20	AS4721 JCOM Co., Ltd.	`8.64ms` 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
58.136.71.197	AS133481 AIS Fibre	`3.32ms` from Bangkok, TH
59.110.137.21	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.93ms` from Beijing, CN
218.205.163.101	AS56048 China Mobile Communicaitons Corporation	`2.39ms` from Beijing, CN
24.211.33.69	AS11426 Charter Communications Inc	`10.61ms` from Charlotte, US
125.21.6.5	AS9498 BHARTI Airtel Ltd.	`1.78ms` from Chennai, IN
182.34.227.149	AS4134 CHINANET-BACKBONE	`6.41ms` from Jinan, CN
4.253.1.69	AS8075 Microsoft Corporation	`0.15ms` from Johannesburg, ZA
81.23.148.85	AS24810 TELESET KAZAN	`0.63ms` from Kazan, RU
203.106.227.21	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`3.13ms` from Kuala Lumpur, MY
77.87.127.21	AS56485 TheHost LLC	`0.78ms` from Kyiv, UA
81.123.17.21	AS3269 Telecom Italia S.p.A.	`5.89ms` from Milan, IT
190.135.83.149	AS6057 Administracion Nacional de Telecomunicaciones	`3.41ms` from Montevideo, UY
62.133.62.245	AS215540 GLOBAL CONNECTIVITY SOLUTIONS LLP	`0.20ms` from Paris, FR
151.15.66.245	AS1267 WIND TRE S.P.A.	`4.12ms` from Rome, IT
78.5.192.117	AS8968 BT Italia S.p.A.	`1.31ms` from Rome, IT
193.91.208.85	AS2116 GLOBALCONNECT AS	`1.77ms` from Sandefjord, NO
105.106.137.229	AS36947 Telecom Algeria	`12.69ms` from Algiers, DZ
20.127.126.149	AS8075 Microsoft Corporation	`0.50ms` from Ashburn, US
203.94.56.229	AS55850 Mercury NZ Limited	`1.29ms` from Auckland, NZ
20.7.182.133	AS8075 Microsoft Corporation	`0.24ms` from Boydton, US
95.166.255.21	AS3292 TDC Holding A/S	`0.73ms` from Copenhagen, DK
97.105.111.149	AS11427 Charter Communications Inc	`3.18ms` from Dallas, US
96.216.161.69	AS7922 Comcast Cable Communications, LLC	`1.05ms` from Denver, US
79.192.65.181	AS3320 Deutsche Telekom AG	`4.36ms` from Frankfurt am Main, DE
109.181.4.213	AS2856 British Telecommunications PLC	`6.92ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -f3 -m7 202.43.22.115

traceroute to 202.43.22.115 (202.43.22.115): 7 hops max, 52 byte packets

3 [AS55017] 104.219.220.29 0.252 ms

4 [AS55017] 104.219.220.11 0.229 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Saskatoon, CA

On December 28th 2025

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