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

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

IP Address	ASN	Details
202.43.17.15	AS4721 JCOM Co., Ltd.	`11.02ms` from Tokyo, JP
202.43.16.1	AS4721 JCOM Co., Ltd.	`2.47ms` from Tokyo, JP
202.43.18.65	AS4721 JCOM Co., Ltd.	`12.38ms` from Tokyo, JP
202.43.19.134	AS4721 JCOM Co., Ltd.	`11.94ms` 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
136.119.154.213	AS396982 Google LLC	`0.10ms` from Council Bluffs, US
14.174.138.181	AS45899 VNPT Corp	`2.41ms` from Da Nang, VN
64.182.236.5	AS54489 CoreSpace, Inc.	`0.81ms` from Dallas, US
94.200.173.5	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.67ms` from Dubai, AE
68.70.84.85	AS18712 Everfast Fiber Networks LLC	`1.52ms` from Kansas City, US
109.181.239.53	AS2856 British Telecommunications PLC	`4.58ms` from London, GB
81.139.217.245	AS2856 British Telecommunications PLC	`7.15ms` from London, GB
107.139.227.69	AS7018 AT&T Enterprises, LLC	`2.72ms` from Los Angeles, US
34.110.138.165	AS396982 Google LLC	`0.07ms` from Melbourne, AU
77.41.28.21	AS8615 "Central Telegraph" Public Joint-stock Company	`2.39ms` from Moscow, RU
193.55.10.69	AS2200 Renater	`2.06ms` from Paris, FR
179.157.152.69	AS28573 Claro NXT Telecomunicacoes Ltda	`6.04ms` from Rio de Janeiro, BR
151.15.66.245	AS1267 WIND TRE S.P.A.	`3.29ms` from Rome, IT
91.203.153.165	AS45054 METROBIT Ltd.	`1.23ms` from Saint Petersburg, RU
43.166.2.21	AS132203 Tencent Building, Kejizhongyi Avenue	`0.75ms` from Seoul, KR
112.149.65.101	AS17858 LG POWERCOMM	`1.86ms` from Seoul, KR
185.166.140.21	AS16509 Amazon.com, Inc.	`0.62ms` from Tokyo, JP
126.19.177.85	AS17676 SoftBank Corp.	`15.14ms` from Tokyo, JP
80.121.10.101	AS8447 A1 Telekom Austria AG	`3.98ms` from Vienna, AT
45.141.17.149	AS210489 Beyond Relationship Marketing GmbH	`1.56ms` from Amsterdam, NL
69.5.250.213	AS396181 SouthernLINC Wireless	`0.79ms` from Atlanta, US
200.14.113.165	AS10299 EMPRESAS MUNICIPALES DE CALI E.I.C.E. E.S.P.	`8.48ms` from Bogota, CO
14.243.91.229	AS45899 VNPT Corp	`8.17ms` from Da Nang, VN
219.76.190.117	AS4760 HKT Limited	`1.40ms` from Hong Kong, HK
180.103.41.213	AS4134 CHINANET-BACKBONE	`7.56ms` from Huai'an, CN

Traceroute

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

traceroute -a -n -q1 -m5 202.43.20.203

traceroute to 202.43.20.203 (202.43.20.203): 5 hops max, 52 byte packets

1 [AS136258] 185.90.61.253 12.615 ms

2 [AS56655] 185.125.170.252 0.205 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Sandefjord, NO

On January 30th 2026

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