223.165.32.0/19

AS4721 · JCOM Co., Ltd.

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Summary

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

WHOIS Details

inetnum:        223.165.32.0 - 223.165.63.255
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:  2021-09-27T07:42:20Z
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:        223.165.32.0 - 223.165.63.255
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:  2021-09-27T23:51:10Z
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 223.165.0.0/16

Range	ASN	Company	Num of IPs
223.165.128.0/17	AS38661	trizn inc.	32,768
223.165.80.0/20	AS10003	Ogaki Cable Television Co.,Inc.	4,096
223.165.96.0/20	AS13807	Great Plains Communications LLC	4,096
223.165.64.0/20	AS45179	SiteHost New Zealand	4,096
223.165.20.0/22	AS4721	JCOM Co., Ltd.	1,024
223.165.121.0/24	AS11377	SendGrid, Inc.	256
223.165.4.0/24	AS136258	Oneprovider.com - Taipei Infrastructure	256
223.165.5.0/24	AS136258	oneprovider.com - Islamabad Infrastructure	256
223.165.16.0/24	AS55850	Liverton Security Limited	256
223.165.6.0/24	AS149440	Evoxt Enterprise	256
223.165.115.0/24	AS11377	SendGrid, Inc.	256
223.165.7.0/24	AS7578	GSL Networks Pty LTD	256
223.165.113.0/24	AS11377	SendGrid, Inc.	256
223.165.24.0/24	AS55705	I World Tower, DLF CITY	256
223.165.25.0/24	AS55705	I World Tower, DLF CITY	256
223.165.26.0/24	AS55705	I World Tower, DLF CITY	256
223.165.27.0/24	AS55705	I World Tower, DLF CITY	256
223.165.28.0/24	AS55705	I World Tower, DLF CITY	256
223.165.29.0/24	AS55705	I World Tower, DLF CITY	256
223.165.30.0/24	AS55705	I World Tower, DLF CITY	256
223.165.31.0/24	AS55705	I World Tower, DLF CITY	256
223.165.118.0/24	AS11377	SendGrid, Inc.	256
223.165.120.0/24	AS11377	SendGrid, Inc.	256
223.165.119.0/24	AS11377	SendGrid, Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

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

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

IP Address	ASN	Details
223.165.61.177	AS4721 JCOM Co., Ltd.	`12.19ms` from Tokyo, JP
223.165.62.61	AS4721 JCOM Co., Ltd.	`13.35ms` from Tokyo, JP
223.165.36.1	AS4721 JCOM Co., Ltd.	`3.88ms` from Tokyo, JP
223.165.51.15	AS4721 JCOM Co., Ltd.	`12.67ms` from Tokyo, JP
223.165.52.1	AS4721 JCOM Co., Ltd.	`3.95ms` from Tokyo, JP
223.165.44.1	AS4721 JCOM Co., Ltd.	`3.87ms` from Tokyo, JP
223.165.55.219	AS4721 JCOM Co., Ltd.	`6.71ms` from Tokyo, JP
223.165.60.1	AS4721 JCOM Co., Ltd.	`3.91ms` from Tokyo, JP
223.165.35.191	AS4721 JCOM Co., Ltd.	`13.51ms` from Tokyo, JP
223.165.45.148	AS4721 JCOM Co., Ltd.	`13.64ms` from Tokyo, JP
223.165.43.187	AS4721 JCOM Co., Ltd.	`9.96ms` from Tokyo, JP
223.165.40.1	AS4721 JCOM Co., Ltd.	`4.39ms` from Tokyo, JP
223.165.47.80	AS4721 JCOM Co., Ltd.	`12.81ms` from Tokyo, JP
223.165.42.253	AS4721 JCOM Co., Ltd.	`12.82ms` from Tokyo, JP
223.165.50.185	AS4721 JCOM Co., Ltd.	`12.84ms` from Tokyo, JP
223.165.63.62	AS4721 JCOM Co., Ltd.	`13.76ms` from Tokyo, JP
223.165.39.244	AS4721 JCOM Co., Ltd.	`14.32ms` from Tokyo, JP
223.165.54.79	AS4721 JCOM Co., Ltd.	`7.83ms` from Tokyo, JP
223.165.38.99	AS4721 JCOM Co., Ltd.	`13.23ms` from Tokyo, JP
223.165.46.105	AS4721 JCOM Co., Ltd.	`10.96ms` from Tokyo, JP
223.165.49.97	AS4721 JCOM Co., Ltd.	`12.58ms` from Tokyo, JP
223.165.53.239	AS4721 JCOM Co., Ltd.	`12.94ms` from Tokyo, JP
223.165.48.1	AS4721 JCOM Co., Ltd.	`4.13ms` from Tokyo, JP
223.165.34.26	AS4721 JCOM Co., Ltd.	`8.87ms` from Tokyo, JP
223.165.41.72	AS4721 JCOM Co., Ltd.	`12.93ms` 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
154.55.97.243	AS5650 Frontier Communications of America, Inc.	`0.26ms` from Ashburn, US
132.193.233.211	AS668 United States Department of Defense (DoD)	`0.58ms` from Atlanta, US
73.69.47.35	AS7922 Comcast Cable Communications, LLC	`6.40ms` from Boston, US
223.18.125.3	AS9304 HGC Global Communications Limited	`1.74ms` from Hong Kong, HK
99.113.42.115	AS7018 AT&T Enterprises, LLC	`17.88ms` from Kansas City, US
113.62.164.195	AS4134 CHINANET-BACKBONE	`0.17ms` from Lhasa, CN
193.95.243.3	AS5603 Telekom Slovenije, d.d.	`0.78ms` from Ljubljana, SI
95.246.13.115	AS3269 Telecom Italia S.p.A.	`4.97ms` from Naples, IT
72.82.145.195	AS701 Verizon Business	`3.59ms` from New York City, US
126.57.62.179	AS17676 SoftBank Corp.	`10.75ms` from Osaka, JP
222.226.225.131	AS2516 KDDI CORPORATION	`8.36ms` from Osaka, JP
176.44.106.83	AS25019 Saudi Telecom Company JSC	`2.04ms` from Riyadh, SA
8.245.26.115	AS3356 Level 3 Parent, LLC	`1.00ms` from Singapore, SG
116.179.11.3	AS4837 CHINA UNICOM China169 Backbone	`7.39ms` from Taiyuan, CN
176.46.24.3	AS3249 Telia Eesti AS	`2.20ms` from Tallinn, EE
47.85.199.163	AS45102 Alibaba (US) Technology Co., Ltd.	`0.30ms` from Ashburn, US
23.101.139.131	AS8075 Microsoft Corporation	`0.46ms` from Ashburn, US
52.146.67.179	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
35.91.173.195	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
20.110.107.147	AS8075 Microsoft Corporation	`0.31ms` from Boydton, US
65.191.134.99	AS11426 Charter Communications Inc	`9.25ms` from Charlotte, US
38.249.31.211	AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED	`1.12ms` from Hong Kong, HK
189.223.9.163	AS8151 UNINET	`3.92ms` from Los Angeles, US
189.222.226.147	AS8151 UNINET	`5.26ms` from Los Angeles, US
77.199.209.19	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`7.68ms` from Lyon, FR

Traceroute

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

traceroute -a -n -q1 -f3 223.165.35.181

traceroute to 223.165.35.181 (223.165.35.181): 64 hops max, 52 byte packets

3 [AS16509] 99.83.91.80 1.912 ms

4 [AS16509] 99.83.91.81 1.904 ms

5 [AS9824] 220.152.46.25 1.957 ms

6 *

7 *

8 *

9 [AS4721] 223.165.35.181 31.525 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 15th 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.

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