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 : abuse@home.ne.jp
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

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

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Pingable IPs

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

IP Address	ASN	Details
210.135.216.254	AS4721 JCOM Co., Ltd.	`2.74ms` from Tokyo, JP
210.135.219.38	AS4721 JCOM Co., Ltd.	`12.06ms` from Tokyo, JP
210.135.199.9	AS4721 JCOM Co., Ltd.	`10.46ms` from Tokyo, JP
210.135.220.1	AS4721 JCOM Co., Ltd.	`3.64ms` from Tokyo, JP
210.135.218.1	AS4721 JCOM Co., Ltd.	`4.14ms` from Tokyo, JP
210.135.198.1	AS4721 JCOM Co., Ltd.	`2.73ms` from Tokyo, JP
210.135.222.240	AS4721 JCOM Co., Ltd.	`2.79ms` from Tokyo, JP
210.135.211.105	AS4721 JCOM Co., Ltd.	`9.99ms` from Tokyo, JP
210.135.221.15	AS4721 JCOM Co., Ltd.	`11.19ms` from Tokyo, JP
210.135.210.1	AS4721 JCOM Co., Ltd.	`2.77ms` 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
188.166.102.195	AS14061 DigitalOcean, LLC	`0.22ms` from Amsterdam, NL
184.184.60.163	AS22773 Cox Communications Inc.	`4.61ms` from Ashburn, US
193.227.166.35	AS9051 IncoNet Data Management sal	`0.32ms` from Beirut, LB
68.235.40.3	AS11878 tzulo, inc.	`1.30ms` from Chicago, US
216.147.115.3	AS401405 CRUSOE ENERGY SYSTEMS LLC	`2.82ms` from Houston, US
46.65.0.115	AS5607 Sky UK Limited	`7.84ms` from London, GB
95.221.128.147	AS12714 PJSC MegaFon	`1.80ms` from Moscow, RU
31.33.177.195	AS5410 Bouygues Telecom SA	`7.91ms` from Paris, FR
98.165.5.3	AS22773 Cox Communications Inc.	`1.27ms` from Phoenix, US
198.145.40.163	AS2044 Digital Fortress	`0.43ms` from Portland, US
172.127.29.243	AS7018 AT&T Enterprises, LLC	`7.11ms` from Redding, US
218.53.138.67	AS9318 SK Broadband Co Ltd	`3.23ms` from Seoul, KR
139.99.81.67	AS16276 OVH SAS	`0.15ms` from Singapore, SG
188.138.44.51	AS29066 velia.net Internetdienste GmbH	`0.19ms` from Strasbourg, FR
20.18.109.19	AS8075 Microsoft Corporation	`0.15ms` from Tokyo, JP
52.233.26.115	AS8075 Microsoft Corporation	`0.17ms` from Toronto, CA
171.41.199.35	AS4134 CHINANET-BACKBONE	`5.58ms` from Wuhan, CN
81.186.147.67	AS8248 Computer Technology Institute and Press Diophantus	`14.47ms` from Athens, GR
117.231.190.163	AS9829 National Internet Backbone	`12.80ms` from Bengaluru, IN
86.8.66.131	AS5089 Virgin Media Limited	`4.11ms` from London, GB
74.71.253.83	AS12271 Charter Communications Inc	`4.89ms` from New York City, US
223.130.90.3	AS46010 SAMJUNG DATA SERVICE	`1.73ms` from Seoul, KR
59.10.237.115	AS4766 Korea Telecom	`1.19ms` from Seoul, KR
107.207.210.67	AS7018 AT&T Enterprises, LLC	`11.51ms` from Atlanta, US
50.207.254.115	AS7922 Comcast Cable Communications, LLC	`2.42ms` from Boston, US

Traceroute

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

traceroute -a -n -q1 -m6 210.135.204.72

traceroute to 210.135.204.72 (210.135.204.72): 6 hops max, 52 byte packets

1 [AS15169] 142.251.60.112 130.539 ms

2 *

3 [AS9824] 220.152.46.109 138.174 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Dallas, US

On August 22nd 2025

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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