223.223.208.0/22

AS4721 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS4721
Parent Range	223.223.208.0/21
Registry	APNIC
ID	JCN

WHOIS Details

inetnum:        223.223.208.0 - 223.223.215.255
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:  2021-09-27T07:42:21Z
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:        223.223.208.0 - 223.223.215.255
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
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:  2021-09-27T23:51:15Z
source:         JPNIC

Overlapping Ranges

BGP prefixes that contain 223.223.208.0/22

Range	ASN	Company	Num of IPs
223.223.208.0/21	AS4721	JCOM Co., Ltd.	2,048

Nearby Ranges

BGP prefixes that overlap with 223.223.0.0/16

Range	ASN	Company	Num of IPs
223.223.0.0/17	AS18144	Enecom,Inc.	32,768
223.223.240.0/20	AS59127	New Media Co.,Ltd	4,096
223.223.176.0/21	AS45064	Elink-space (Beijing) Technology Co,. Ltd	2,048
223.223.184.0/21	AS45064	Beijing WangJu Interworking Information Technology Co. LTD	2,048
223.223.208.0/21	AS4721	JCOM Co., Ltd.	2,048
223.223.176.0/21	AS4847	Elink-space (Beijing) Technology Co,. Ltd	2,048
223.223.184.0/21	AS4847	Beijing WangJu Interworking Information Technology Co. LTD	2,048
223.223.168.0/21	AS55329	Telcotech Ltd	2,048
223.223.220.0/22	AS132281	China Unicom (Singapore) Operations Pte Ltd	1,024
223.223.160.0/22	AS55382	Nagato city office	1,024
223.223.218.0/24	AS133380	Dedicated Server	256
223.223.219.0/24	AS133380	vps hosting	256
223.223.217.0/24	AS133380	Share Hosting	256
223.223.167.0/24	AS38643	UNIADEX, Ltd.	256
223.223.166.0/24	AS131894	UNIADEX, Ltd.	256

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
223.223.211.235	cobalt-blue.jp	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

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

IP Address	ASN	Details
223.223.210.1	AS4721 JCOM Co., Ltd.	`4.04ms` from Tokyo, JP
223.223.211.237	AS4721 JCOM Co., Ltd.	`10.94ms` from Tokyo, JP
223.223.209.216	AS4721 JCOM Co., Ltd.	`11.13ms` from Tokyo, JP
223.223.208.1	AS4721 JCOM Co., Ltd.	`4.10ms` 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
120.3.173.150	AS4837 CHINA UNICOM China169 Backbone	`9.59ms` from Beijing, CN
93.241.201.246	AS3320 Deutsche Telekom AG	`4.20ms` from Duesseldorf, DE
165.154.92.230	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	`1.53ms` from Hong Kong, HK
105.213.78.150	AS16637 MTN SA	`2.63ms` from Johannesburg, ZA
49.144.24.54	AS9299 Philippine Long Distance Telephone Company	`1.55ms` from Manila, PH
75.33.90.38	AS7018 AT&T Enterprises, LLC	`4.70ms` from Miami, US
82.225.233.6	AS12322 Free SAS	`8.69ms` from Paris, FR
64.135.225.182	AS6536 CityNet	`0.63ms` from Pittsburgh, US
115.15.172.54	AS4766 Korea Telecom	`6.82ms` from Seoul, KR
116.89.28.38	AS55430 Starhub Ltd	`1.88ms` from Singapore, SG
42.178.72.54	AS4837 CHINA UNICOM China169 Backbone	`7.87ms` from Tieling, CN
133.209.78.246	AS2518 BIGLOBE Inc.	`11.37ms` from Tokyo, JP
115.62.249.150	AS4837 CHINA UNICOM China169 Backbone	`2.23ms` from Zhengzhou, CN
44.207.248.22	AS14618 Amazon.com, Inc.	`0.47ms` from Ashburn, US
75.146.29.86	AS7922 Comcast Cable Communications, LLC	`6.52ms` from Ashburn, US
107.202.103.214	AS7018 AT&T Enterprises, LLC	`11.98ms` from Atlanta, US
179.41.149.182	AS22927 Telefonica de Argentina	`2.37ms` from Buenos Aires, AR
98.50.167.246	AS7922 Comcast Cable Communications, LLC	`14.29ms` from Dallas, US
91.46.139.70	AS3320 Deutsche Telekom AG	`2.32ms` from Duesseldorf, DE
3.70.225.198	AS16509 Amazon.com, Inc.	`0.12ms` from Frankfurt am Main, DE
179.6.242.134	AS12252 America Movil Peru S.A.C.	`12.42ms` from Lima, PE
47.136.253.150	AS5650 Frontier Communications of America, Inc.	`5.99ms` from Los Angeles, US
69.248.219.70	AS7922 Comcast Cable Communications, LLC	`7.59ms` from Morris Plains, US
50.196.43.102	AS7922 Comcast Cable Communications, LLC	`6.86ms` from New York City, US
88.86.101.6	AS39392 SH.cz s.r.o.	`0.25ms` from Prague, CZ

Traceroute

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

traceroute -a -n -q1 223.223.211.237

traceroute to 223.223.211.237 (223.223.211.237): 64 hops max, 52 byte packets

1 [AS15169] 74.125.251.87 132.992 ms

2 *

3 [AS9824] 220.152.46.121 132.587 ms

4 *

5 *

6 *

7 [AS4721] 223.223.211.237 151.206 ms

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

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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