210.135.208.0/20

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:        210.135.208.0 - 210.135.215.255
netname:        JCN-CIDR-BLK-JP
descr:          JCOM Co., Ltd.
remarks:        Email address for spam or abuse complaints : abuse@home.ne.jp
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
last-modified:  2021-09-27T23:53:21Z
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

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
210.135.222.193	protodevelop.com	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

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

IP Address	ASN	Details
210.135.210.1	AS4721 JCOM Co., Ltd.	`2.44ms` from Tokyo, JP
210.135.218.1	AS4721 JCOM Co., Ltd.	`3.04ms` from Tokyo, JP
210.135.219.118	AS4721 JCOM Co., Ltd.	`8.40ms` from Tokyo, JP
210.135.220.1	AS4721 JCOM Co., Ltd.	`3.96ms` from Tokyo, JP
210.135.211.137	AS4721 JCOM Co., Ltd.	`5.83ms` from Tokyo, JP
210.135.222.240	AS4721 JCOM Co., Ltd.	`2.47ms` from Tokyo, JP
210.135.216.254	AS4721 JCOM Co., Ltd.	`2.54ms` from Tokyo, JP
210.135.221.170	AS4721 JCOM Co., Ltd.	`10.87ms` 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
193.200.141.4	AS8423 NetcoRR	`1.22ms` from Bucharest, RO
200.5.215.68	AS10834 Telefonica de Argentina	`12.69ms` from Buenos Aires, AR
50.105.171.132	AS5650 Frontier Communications of America, Inc.	`6.53ms` from Chicago, US
161.65.56.36	AS4667 GNS Science New Zealand	`1.08ms` from Hamilton, NZ
171.227.216.84	AS7552 Viettel Group	`0.95ms` from Ho Chi Minh City, VN
49.170.5.4	AS17858 LG POWERCOMM	`2.03ms` from Incheon, KR
81.159.122.36	AS2856 British Telecommunications PLC	`5.16ms` from London, GB
126.125.18.164	AS17676 SoftBank Corp.	`10.81ms` from Osaka, JP
219.109.243.52	AS9351 ZTV CO.,LTD	`3.33ms` from Osaka, JP
73.140.16.84	AS7922 Comcast Cable Communications, LLC	`6.20ms` from Seattle, US
183.107.168.100	AS4766 Korea Telecom	`3.29ms` from Seoul, KR
111.179.250.68	AS4134 CHINANET-BACKBONE	`6.58ms` from Wuhan, CN
115.51.249.68	AS4837 CHINA UNICOM China169 Backbone	`3.08ms` from Zhengzhou, CN
95.56.197.20	AS9198 JSC Kazakhtelecom	`9.55ms` from Almaty, KZ
100.24.240.84	AS14618 Amazon.com, Inc.	`0.56ms` from Ashburn, US
3.95.150.20	AS14618 Amazon.com, Inc.	`0.45ms` from Ashburn, US
52.0.159.52	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
44.228.219.212	AS16509 Amazon.com, Inc.	`0.19ms` from Boardman, US
143.59.29.52	AS12083 WideOpenWest Finance LLC	`11.86ms` from Chicago, US
66.248.65.164	AS7029 Windstream Communications LLC	`10.82ms` from Chicago, US
193.233.52.100	AS207447 OOO Smart Technologies	`0.95ms` from Moscow, RU
58.92.188.20	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.95ms` from Osaka, JP
198.94.222.4	AS396943 City of Sunnyvale	`0.34ms` from San Jose, US
201.137.66.244	AS8151 UNINET	`3.75ms` from Santiago de Queretaro, MX
220.137.78.68	AS3462 Data Communication Business Group	`1.82ms` from Taipei, TW

Traceroute

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

traceroute -a -n -q1 -f4 -m7 210.135.208.235

traceroute to 210.135.208.235 (210.135.208.235): 7 hops max, 52 byte packets

4 [AS21928] 100.199.0.57 0.078 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Liuzhou, CN

On March 13th 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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