210.135.192.0/19

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Registry	JPNIC
ID	JCN-CIDR-BLK-JP

WHOIS Details

inetnum:        210.135.192.0 - 210.135.207.255
netname:        JCN-CIDR-BLK-JP
descr:          JCOM Co., Ltd.
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2021-09-27T23:53:14Z
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 are contained by 210.135.192.0/19

Range	ASN	Company	Num of IPs
210.135.192.0/20	AS4721	JCOM Co., Ltd.	4,096

Nearby Ranges

BGP prefixes that overlap with 210.135.0.0/16

Range	ASN	Company	Num of IPs
210.135.96.0/20	AS37898	Gemma Engineering	4,096
210.135.192.0/20	AS4721	JCOM Co., Ltd.	4,096
210.135.112.0/20	AS9371	SAKURA Internet Inc.	4,096
210.135.232.0/21	AS23778	IMIZU CABLE NETWORK CO.,LTD.	2,048
210.135.224.0/21	AS7524	BAN-BAN Networks Co.LTD	2,048

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

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

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Pingable IPs

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

IP Address	ASN	Details
210.135.221.17	AS4721 JCOM Co., Ltd.	`12.34ms` from Tokyo, JP
210.135.218.1	AS4721 JCOM Co., Ltd.	`3.56ms` from Tokyo, JP
210.135.198.1	AS4721 JCOM Co., Ltd.	`2.42ms` from Tokyo, JP
210.135.210.1	AS4721 JCOM Co., Ltd.	`2.35ms` from Tokyo, JP
210.135.216.254	AS4721 JCOM Co., Ltd.	`2.24ms` from Tokyo, JP
210.135.199.191	AS4721 JCOM Co., Ltd.	`6.57ms` from Tokyo, JP
210.135.222.240	AS4721 JCOM Co., Ltd.	`2.44ms` from Tokyo, JP
210.135.219.123	AS4721 JCOM Co., Ltd.	`9.98ms` from Tokyo, JP
210.135.211.37	AS4721 JCOM Co., Ltd.	`8.43ms` from Tokyo, JP
210.135.220.1	AS4721 JCOM Co., Ltd.	`3.21ms` 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
81.186.147.67	AS8248 Computer Technology Institute and Press "Diophantus"	`14.31ms` from Athens, GR
172.210.188.51	AS8075 Microsoft Corporation	`0.34ms` from Boydton, US
99.42.175.195	AS7018 AT&T Enterprises, LLC	`4.58ms` from Chicago, US
16.58.20.227	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
150.238.241.227	AS36351 IBM Cloud	`0.94ms` from Dallas, US
183.236.97.35	AS9808 China Mobile Communications Group Co., Ltd.	`5.29ms` from Guangzhou, CN
93.221.28.179	AS3320 Deutsche Telekom AG	`1.51ms` from Hamburg, DE
91.200.109.131	AS62336 PURtel.com GmbH	`1.39ms` from Hamburg, DE
110.15.137.19	AS9318 SK Broadband Co Ltd	`1.87ms` from Incheon, KR
119.178.69.115	AS4837 CHINA UNICOM China169 Backbone	`6.42ms` from Jinan, CN
31.54.75.51	AS2856 British Telecommunications PLC	`8.38ms` from London, GB
88.173.35.195	AS12322 Free SAS	`5.85ms` from Paris, FR
176.135.252.3	AS5410 Bouygues Telecom SA	`8.35ms` from Paris, FR
112.242.249.243	AS4837 CHINA UNICOM China169 Backbone	`7.80ms` from Qingdao, CN
112.245.185.19	AS4837 CHINA UNICOM China169 Backbone	`5.27ms` from Qingdao, CN
123.200.66.227	AS38121 LG HelloVision Corp.	`6.03ms` from Seoul, KR
187.93.29.227	AS10429 TELEFÔNICA BRASIL S.A	`0.76ms` from São Paulo, BR
118.165.144.99	AS3462 Data Communication Business Group	`3.15ms` from Taipei, TW
120.61.227.163	AS9829 National Internet Backbone	`11.83ms` from Bengaluru, IN
50.106.94.211	AS5650 Frontier Communications of America, Inc.	`5.08ms` from Chicago, US
76.92.133.115	AS11427 Charter Communications Inc	`14.14ms` from Dallas, US
3.79.11.83	AS16509 Amazon.com, Inc.	`0.47ms` from Frankfurt am Main, DE
123.16.22.115	AS45899 VNPT Corp	`1.20ms` from Hanoi, VN
93.45.6.147	AS12874 Fastweb SpA	`0.66ms` from Milan, IT
20.235.25.211	AS8075 Microsoft Corporation	`0.27ms` from Saint Thomas Mount, IN

Traceroute

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

traceroute -a -n -q1 -f2 -m6 210.135.215.84

traceroute to 210.135.215.84 (210.135.215.84): 6 hops max, 52 byte packets

2 [AS47447] 212.83.33.9 0.318 ms

3 [AS47447] 62.113.192.89 0.525 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On January 30th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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