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

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

IP Address	ASN	Details
210.135.221.202	AS4721 JCOM Co., Ltd.	`10.03ms` from Tokyo, JP
210.135.222.240	AS4721 JCOM Co., Ltd.	`2.19ms` from Tokyo, JP
210.135.219.118	AS4721 JCOM Co., Ltd.	`10.60ms` from Tokyo, JP
210.135.220.1	AS4721 JCOM Co., Ltd.	`3.51ms` from Tokyo, JP
210.135.210.1	AS4721 JCOM Co., Ltd.	`2.26ms` from Tokyo, JP
210.135.211.148	AS4721 JCOM Co., Ltd.	`8.26ms` from Tokyo, JP
210.135.216.254	AS4721 JCOM Co., Ltd.	`2.38ms` from Tokyo, JP
210.135.218.1	AS4721 JCOM Co., Ltd.	`3.34ms` 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
192.136.186.4	AS29888 Unum Group	`0.75ms` from Atlanta, US
92.74.48.164	AS3209 Vodafone GmbH	`8.56ms` from Berlin, DE
84.148.41.20	AS3320 Deutsche Telekom AG	`5.75ms` from Frankfurt am Main, DE
111.124.33.100	AS4134 CHINANET-BACKBONE	`3.58ms` from Guiyang, CN
202.138.56.52	AS9443 Vocus Retail	`0.41ms` from Melbourne, AU
39.78.49.212	AS4837 CHINA UNICOM China169 Backbone	`6.68ms` from Qingdao, CN
34.207.135.132	AS14618 Amazon.com, Inc.	`0.58ms` from Reston, US
211.107.238.132	AS4766 Korea Telecom	`4.68ms` from Seoul, KR
1.249.157.116	AS9318 SK Broadband Co Ltd	`7.84ms` from Seoul, KR
126.55.87.20	AS17676 SoftBank Corp.	`2.96ms` from Tokyo, JP
67.187.28.116	AS7922 Comcast Cable Communications, LLC	`6.45ms` from Ashburn, US
210.74.3.196	AS4847 China Networks Inter-Exchange	`2.01ms` from Beijing, CN
104.43.224.132	AS8075 Microsoft Corporation	`0.36ms` from Des Moines, US
202.125.142.4	AS9557 Paknet Limited Merged into PTCL	`0.63ms` from Islamabad, PK
191.241.131.20	AS263671 MINAS INFO LTDA-ME	`10.72ms` from Joao Pessoa, BR
93.43.104.228	AS12874 Fastweb SpA	`0.86ms` from Milan, IT
35.143.46.4	AS33363 Charter Communications, Inc	`8.11ms` from Orlando, US
44.206.31.132	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
54.208.214.52	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
1.34.41.52	AS3462 Data Communication Business Group	`0.74ms` from Taipei, TW
125.24.121.148	AS23969 TOT Public Company Limited	`10.80ms` from Bangkok, TH
84.1.55.228	AS5483 Magyar Telekom Plc.	`5.85ms` from Budapest, HU
207.6.35.100	AS852 TELUS Communications Inc.	`13.94ms` from Calgary, CA
104.154.89.196	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
15.216.124.228	AS16509 Amazon.com, Inc.	`5.69ms` from Madrid, ES

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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