122.255.192.0/18

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Registry	APNIC
ID	JCN

WHOIS Details

inetnum:        122.255.192.0 - 122.255.223.255
netname:        JCN
descr:          JCOM Co., Ltd.
descr:          Daiwa Tower,
descr:          1-2-1 kamiogi,Suginami-ku,Tokyo,Japan
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
status:         ALLOCATED PORTABLE
remarks:        Email address for spam or abuse complaints : abuse@home.ne.jp
mnt-irt:        IRT-JPNIC-JP
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
last-modified:  2021-09-27T07:42:07Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2020-07-23
mnt-by:         MAINT-JPNIC
last-modified:  2022-06-14T04:26:58Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

inetnum:        122.255.192.0 - 122.255.223.255
netname:        JCOM-NET
descr:          Jupiter Telecommunications Co., Ltd.
country:        JP
admin-c:        JP00006551
tech-c:         JP00006551
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)
last-modified:  2015-11-25T04:47:22Z
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 122.255.0.0/16

Range	ASN	Company	Num of IPs
122.255.0.0/18	AS18001	Dialog Telekom Plc	16,384
122.255.128.0/18	AS4721	JCOM Co., Ltd.	16,384
122.255.96.0/19	AS38322	TM TECHNOLOGY SERVICES SDN. BHD.	8,192
122.255.80.0/20	AS2914	NTT Taiwan Ltd.	4,096
122.255.76.0/22	AS24295	PacketFabric (Japan) Co., Ltd.	1,024

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
122.255.217.66	kemoshiko.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

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

IP Address	ASN	Details
122.255.234.31	AS4721 JCOM Co., Ltd.	`12.28ms` from Tokyo, JP
122.255.247.112	AS4721 JCOM Co., Ltd.	`9.29ms` from Tokyo, JP
122.255.197.51	AS4721 JCOM Co., Ltd.	`5.79ms` from Tokyo, JP
122.255.221.67	AS4721 JCOM Co., Ltd.	`11.54ms` from Tokyo, JP
122.255.232.1	AS4721 JCOM Co., Ltd.	`2.84ms` from Tokyo, JP
122.255.225.67	AS4721 JCOM Co., Ltd.	`9.76ms` from Tokyo, JP
122.255.227.157	AS4721 JCOM Co., Ltd.	`12.50ms` from Tokyo, JP
122.255.211.210	AS4721 JCOM Co., Ltd.	`10.32ms` from Tokyo, JP
122.255.200.1	AS4721 JCOM Co., Ltd.	`2.51ms` from Tokyo, JP
122.255.215.85	AS4721 JCOM Co., Ltd.	`11.81ms` from Tokyo, JP
122.255.202.77	AS4721 JCOM Co., Ltd.	`11.63ms` from Tokyo, JP
122.255.224.1	AS4721 JCOM Co., Ltd.	`3.16ms` from Tokyo, JP
122.255.213.95	AS4721 JCOM Co., Ltd.	`8.17ms` from Tokyo, JP
122.255.196.1	AS4721 JCOM Co., Ltd.	`2.37ms` from Tokyo, JP
122.255.207.33	AS4721 JCOM Co., Ltd.	`12.53ms` from Tokyo, JP
122.255.220.1	AS4721 JCOM Co., Ltd.	`2.69ms` from Tokyo, JP
122.255.233.106	AS4721 JCOM Co., Ltd.	`11.34ms` from Tokyo, JP
122.255.246.155	AS4721 JCOM Co., Ltd.	`9.31ms` from Tokyo, JP
122.255.199.38	AS4721 JCOM Co., Ltd.	`11.03ms` from Tokyo, JP
122.255.244.1	AS4721 JCOM Co., Ltd.	`3.69ms` from Tokyo, JP
122.255.231.49	AS4721 JCOM Co., Ltd.	`12.64ms` from Tokyo, JP
122.255.218.156	AS4721 JCOM Co., Ltd.	`11.25ms` from Tokyo, JP
122.255.219.183	AS4721 JCOM Co., Ltd.	`11.10ms` from Tokyo, JP
122.255.208.1	AS4721 JCOM Co., Ltd.	`2.48ms` from Tokyo, JP
122.255.228.1	AS4721 JCOM Co., Ltd.	`3.19ms` 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
20.252.202.98	AS8075 Microsoft Corporation	`0.30ms` from Boydton, US
102.113.193.194	AS23889 Mauritius Telecom Ltd	`1.46ms` from Ebene, MU
147.147.65.18	AS6871 Plusnet	`5.40ms` from Erith, GB
156.250.201.50	AS132839 POWER LINE DATACENTER	`1.03ms` from Hong Kong, HK
90.152.1.34	AS8220 COLT Technology Services Group Limited	`1.82ms` from London, GB
220.244.245.178	AS7545 TPG Telecom Limited	`1.36ms` from Perth, AU
112.240.173.82	AS4837 CHINA UNICOM China169 Backbone	`10.88ms` from Qingdao, CN
198.32.176.226	AS7713 PT Telekomunikasi Indonesia	`0.72ms` from Santa Clara, US
191.184.212.50	AS28573 Claro NXT Telecomunicacoes Ltda	`19.57ms` from Sao Paulo, BR
175.242.229.66	AS4766 Korea Telecom	`7.52ms` from Seoul, KR
211.48.11.82	AS4766 Korea Telecom	`1.49ms` from Seoul, KR
65.9.87.66	AS16509 Amazon.com, Inc.	`1.50ms` from Stockholm, SE
114.42.219.2	AS3462 Data Communication Business Group	`2.37ms` from Taichung, TW
82.147.178.130	AS8728 AS INFONET	`0.52ms` from Tallinn, EE
126.218.254.114	AS17676 SoftBank Corp.	`3.13ms` from Tokyo, JP
95.33.246.18	AS9145 EWE TEL GmbH	`6.48ms` from Amsterdam, NL
44.193.20.130	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
169.55.106.82	AS36351 IBM Cloud	`0.45ms` from Ashburn, US
63.78.135.226	AS701 Verizon Business	`7.76ms` from Ashburn, US
94.64.72.162	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.54ms` from Athens, GR
24.31.25.2	AS40285 NORTHLAND CABLE TELEVISION INC.	`3.01ms` from Atlanta, US
200.14.41.2	AS27810 MERCANET LTDA	`0.37ms` from Bogotá, CO
110.143.100.194	AS1221 Telstra Limited	`2.95ms` from Brisbane, AU
67.167.51.162	AS7922 Comcast Cable Communications, LLC	`8.39ms` from Chicago, US
199.36.140.82	AS395929 Virtuwave Holdings LLC	`2.72ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -m5 122.255.239.244

traceroute to 122.255.239.244 (122.255.239.244): 5 hops max, 52 byte packets

1 [AS136258] 185.213.23.211 0.141 ms

2 [AS56655] 185.125.170.252 0.137 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Sandefjord, NO

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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