202.78.176.0/21

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	202.78.176.0/20
Registry	JPNIC
ID	JCOM-NET

WHOIS Details

inetnum:        202.78.176.0 - 202.78.179.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2015-12-15T01:55:00Z
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 202.78.176.0/21

Range	ASN	Company	Num of IPs
202.78.176.0/20	AS4721	JCOM Co., Ltd.	4,096

Nearby Ranges

BGP prefixes that overlap with 202.78.0.0/16

Range	ASN	Company	Num of IPs
202.78.64.0/18	AS6648	Bayan Telecommunications Incorporated	16,384
202.78.128.0/19	AS4768	One New Zealand Group Limited	8,192
202.78.16.0/20	AS23703	RigNet Inc, Communication to offshore rigs in Asia/Pacific.	4,096
202.78.176.0/20	AS4721	JCOM Co., Ltd.	4,096
202.78.208.0/20	AS7671	NTT SmartConnect Corporation	4,096
202.78.16.0/20	AS132850	RigNet Inc, Communication to offshore rigs in Asia/Pacific.	4,096
202.78.184.0/21	AS4721	Jupiter Telecommunications Co., Ltd.	2,048
202.78.240.0/21	AS24226	Catalyst .Net Limited	2,048
202.78.224.0/21	AS24085	Quang Trung Software City Development Company Limited	2,048
202.78.28.0/23	AS139829	Viasat Australia	512
202.78.200.0/23	AS18059	PT Graha Sarana Data	512
202.78.164.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.167.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.168.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.79.0/24	AS132716	SURESTE PROPERTIES INC	256
202.78.172.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.173.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.175.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.224.0/24	AS24085	ip range assigned for Infrastructure at QTSC office's Network	256
202.78.226.0/24	AS24085	ip range assigned for PE-CE Link Service	256
202.78.227.0/24	AS24085	ip range allocate for dedicate server service of QTSC	256
202.78.251.0/24	AS38874	KARVY	256
202.78.127.0/24	AS6648	Border IAS Clients	256
202.78.170.0/24	AS202422	G-Core Labs Customer assignment	256
202.78.193.0/24	AS18059	PT Net2Cyber	256
202.78.194.0/24	AS18059	PT. Indonesia Nickel Tbk	256
202.78.195.0/24	AS18059	Graha Sarana Data, PT	256
202.78.202.0/24	AS18059	PT Graha Sarana Data	256
202.78.204.0/24	AS18059	PT Net2Cyber	256
202.78.206.0/24	AS18059	PT Dwi Tunggal Putra	256
202.78.207.0/24	AS18059	Multi Data Palembang, PT	256
202.78.161.0/24	AS199524	G-Core Labs Customer assignment	256
202.78.174.0/24	AS199524	G-Core Labs Customer assignment	256
202.78.160.0/24	AS202422	G-Core Labs Customer assignment	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
202.78.180.1	j-cnet.co.jp	1

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

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

IP Address	ASN	Details
202.78.177.108	AS4721 JCOM Co., Ltd.	`12.48ms` from Tokyo, JP
202.78.182.1	AS4721 JCOM Co., Ltd.	`2.93ms` from Tokyo, JP
202.78.183.230	AS4721 JCOM Co., Ltd.	`10.92ms` from Tokyo, JP
202.78.178.105	AS4721 JCOM Co., Ltd.	`12.65ms` from Tokyo, JP
202.78.176.1	AS4721 JCOM Co., Ltd.	`3.79ms` from Tokyo, JP
202.78.179.117	AS4721 JCOM Co., Ltd.	`12.33ms` 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
20.124.248.245	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
135.237.188.197	AS8075 Microsoft Corporation	`0.70ms` from Boydton, US
175.7.206.229	AS4134 CHINANET-BACKBONE	`6.47ms` from Changsha, CN
76.139.182.5	AS7922 Comcast Cable Communications, LLC	`11.15ms` from Flint, US
81.209.246.21	AS13237 euNetworks GmbH	`2.53ms` from Frankfurt am Main, DE
185.133.208.21	AS56382 vServer.site LTD	`0.55ms` from Frankfurt am Main, DE
104.86.148.69	AS16625 Akamai Technologies, Inc.	`0.31ms` from Hamburg, DE
103.137.206.101	AS138965 Streamtech Systems Technologies Inc.	`0.14ms` from Hong Kong, HK
175.112.45.165	AS9318 SK Broadband Co Ltd	`1.19ms` from Incheon, KR
38.186.236.197	AS393442 United Electric Cooperative	`3.90ms` from Kansas City, US
217.179.69.37	AS5503 RM Education Ltd	`0.50ms` from London, GB
2.116.148.21	AS3269 Telecom Italia S.p.A.	`3.70ms` from Milan, IT
125.117.253.37	AS4134 CHINANET-BACKBONE	`8.70ms` from Ningbo, CN
211.15.230.21	AS2516 KDDI CORPORATION	`1.24ms` from Osaka, JP
123.131.202.21	AS4837 CHINA UNICOM China169 Backbone	`7.22ms` from Qingdao, CN
103.95.255.69	AS135061 China Unicom Guangdong IP network	`2.66ms` from Shenzhen, CN
62.162.40.53	AS6821 Makedonski Telekom AD-Skopje	`0.59ms` from Skopje, MK
113.225.130.229	AS4837 CHINA UNICOM China169 Backbone	`2.19ms` from Tieling, CN
118.108.20.21	AS2518 BIGLOBE Inc.	`13.58ms` from Tokyo, JP
52.43.43.229	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
75.192.196.229	AS6167 Verizon Business	`11.52ms` from Boston, US
195.168.106.213	AS5578 SWAN, a.s.	`0.23ms` from Bratislava, SK
89.101.246.181	AS6830 Liberty Global Europe Holding B.V.	`4.25ms` from Dublin, IE
184.68.235.165	AS6327 Shaw Communications	`0.57ms` from Edmonton, CA
113.4.105.85	AS4837 CHINA UNICOM China169 Backbone	`4.58ms` from Harbin, CN

Traceroute

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

traceroute -a -n -q1 -f5 202.78.182.227

traceroute to 202.78.182.227 (202.78.182.227): 64 hops max, 52 byte packets

5 [] 101.203.89.218 4.143 ms

6 [AS9824] 220.152.46.17 4.077 ms

7 *

8 *

9 *

10 [AS4721] 202.78.182.227 18.454 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On January 19th 2026

What are IP address ranges?

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