210.20.0.0/16

AS9824 · JCOM Co., Ltd.

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Summary

Country	Japan
Domain	jcom.co.jp
ASN	AS9824
Registry	APNIC
ID	JTCL-JP

WHOIS Details

inetnum:        210.20.128.0 - 210.20.255.255
netname:        JTCL-JP
descr:          JCOM Co., Ltd.
country:        JP
org:            ORG-JTCL1-AP
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
abuse-c:        AJ428-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JTCL-JP
mnt-routes:     MAINT-JTCL-JP
mnt-irt:        IRT-JTCL-JP
last-modified:  2021-10-18T23:14:14Z
source:         APNIC

irt:            IRT-JTCL-JP
address:        1-2-1, Kamiogi, Suginami-ku
address:        Tokyo, Japan, 167-0043
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-11-11
mnt-by:         MAINT-JTCL-JP
last-modified:  2025-11-18T00:29:34Z
source:         APNIC

organisation:   ORG-JTCL1-AP
org-name:       JCOM Co., Ltd.
org-type:       LIR
country:        JP
address:        1-2-1, Kamiogi, Suginami-ku
address:        Tokyo, Japan, 167-0043
phone:          +81-3-4366-8870
fax-no:         +81-3-4366-8571
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:29Z
source:         APNIC

role:           ABUSE JTCLJP
country:        ZZ
address:        1-2-1, Kamiogi, Suginami-ku
address:        Tokyo, Japan, 167-0043
phone:          +000000000
e-mail:         [email protected]
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
nic-hdl:        AJ428-AP
remarks:        Generated from irt object IRT-JTCL-JP
remarks:        [email protected] was validated on 2025-11-11
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-11T13:40:10Z
source:         APNIC

role:           Jupiter Telecommunication Co Ltd administrator
address:        1-2-1, Kamiogi,Suginami-ku
address:        Tokyo, Japan, 167-0043
country:        JP
phone:          +81-3-6765-8000
e-mail:         [email protected]
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
nic-hdl:        JTCL2-AP
mnt-by:         MAINT-JTCL-JP
last-modified:  2025-07-01T05:25:52Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 210.20.0.0/16

Range	ASN	Company	Num of IPs
210.20.128.0/17	AS9824	JCOM Co., Ltd.	32,768

Nearby Ranges

BGP prefixes that overlap with 210.0.0.0/8

Range	ASN	Company	Num of IPs
210.8.0.0/15	AS17535	AAPT Limited	131,072
210.8.0.0/15	AS4739	AAPT Limited	131,072
210.8.0.0/15	AS2764	AAPT Limited	131,072
210.149.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.144.0.0/16	AS4673	NTT DATA CORPORATION	65,536
210.50.0.0/16	AS9443	VOCUS PTY LTD	65,536
210.147.0.0/16	AS2518	BIGLOBE Inc.	65,536
210.225.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.64.0.0/16	AS4780	Digital United Inc.	65,536
210.68.0.0/16	AS4780	Digital United Inc.	65,536
210.248.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.58.0.0/16	AS9311	ETWebs Taiwan Co. Ltd.	65,536
210.122.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.194.0.0/16	AS9824	JCOM Co., Ltd.	65,536
210.108.0.0/16	AS9767	LG DACOM Corporation	65,536
210.148.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.85.0.0/16	AS4780	ETWebs Taiwan Co. Ltd.	65,536
210.190.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.164.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.66.0.0/16	AS4780	New Century InfoComm Tech. Co., Ltd.	65,536
210.138.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.216.0.0/16	AS3786	LG DACOM Corporation	65,536
210.232.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.202.0.0/16	AS9311	Asia Pacific Telecom Co., Ltd	65,536
210.108.0.0/16	AS9776	LG DACOM Corporation	65,536
210.109.0.0/16	AS9848	SEJONG NETWORKS	65,536
210.108.0.0/16	AS9852	LG DACOM Corporation	65,536
210.124.0.0/16	AS9856	LG DACOM Corporation	65,536
210.108.0.0/16	AS9526	LG DACOM Corporation	65,536
210.182.0.0/16	AS18317	LG DACOM Corporation	65,536
210.11.0.0/16	AS2764	AAPT Limited	65,536
210.216.0.0/16	AS7562	LG DACOM Corporation	65,536
210.3.0.0/16	AS140881	HGC Global Communications Limited	65,536
210.137.0.0/16	AS2907	Research Organization of Information and Systems, National Institute of Informatics	65,536
210.124.0.0/16	AS3786	LG DACOM Corporation	65,536
210.25.0.0/16	AS4538	China Education and Research Network	65,536
210.120.0.0/16	AS3786	LG DACOM Corporation	65,536
210.154.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.85.0.0/16	AS17709	ETWebs Taiwan Co. Ltd.	65,536
210.108.0.0/16	AS3786	LG DACOM Corporation	65,536
210.128.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.122.0.0/16	AS17837	SEJONG NETWORKS	65,536
210.130.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.182.0.0/16	AS3786	LG DACOM Corporation	65,536
210.91.0.0/16	AS23580	Korea Telecom	65,536
210.58.0.0/16	AS7482	ETWebs Taiwan Co. Ltd.	65,536
210.124.0.0/16	AS9319	LG DACOM Corporation	65,536
210.136.0.0/16	AS2514	NTT PC Communications,Inc.	65,536
210.120.0.0/16	AS45404	LG DACOM Corporation	65,536
210.215.0.0/16	AS38055	Nexon Asia Pacific Pty Ltd	65,536

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

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

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

IP Address	ASN	Details
210.20.116.1	AS9824 JCOM Co., Ltd.	`16.85ms` from Tokyo, JP
210.20.72.1	AS9824 JCOM Co., Ltd.	`3.96ms` from Tokyo, JP
210.20.69.38	AS9824 JCOM Co., Ltd.	`12.19ms` from Tokyo, JP
210.20.75.194	AS9824 JCOM Co., Ltd.	`12.15ms` from Tokyo, JP
210.20.54.171	AS9824 JCOM Co., Ltd.	`12.42ms` from Tokyo, JP
210.20.74.253	AS9824 JCOM Co., Ltd.	`11.61ms` from Tokyo, JP
210.20.42.18	AS9824 JCOM Co., Ltd.	`12.93ms` from Tokyo, JP
210.20.43.8	AS9824 JCOM Co., Ltd.	`12.94ms` from Tokyo, JP
210.20.57.11	AS9824 JCOM Co., Ltd.	`12.53ms` from Tokyo, JP
210.20.41.100	AS9824 JCOM Co., Ltd.	`12.68ms` from Tokyo, JP
210.20.61.82	AS9824 JCOM Co., Ltd.	`12.60ms` from Tokyo, JP
210.20.119.233	AS9824 JCOM Co., Ltd.	`25.78ms` from Tokyo, JP
210.20.87.109	AS9824 JCOM Co., Ltd.	`11.61ms` from Tokyo, JP
210.20.84.1	AS9824 JCOM Co., Ltd.	`3.88ms` from Tokyo, JP
210.20.107.137	AS9824 JCOM Co., Ltd.	`6.90ms` from Tokyo, JP
210.20.108.1	AS9824 JCOM Co., Ltd.	`3.85ms` from Tokyo, JP
210.20.62.205	AS9824 JCOM Co., Ltd.	`11.83ms` from Tokyo, JP
210.20.38.164	AS9824 JCOM Co., Ltd.	`12.34ms` from Tokyo, JP
210.20.50.39	AS9824 JCOM Co., Ltd.	`12.71ms` from Tokyo, JP
210.20.91.245	AS9824 JCOM Co., Ltd.	`11.05ms` from Tokyo, JP
210.20.106.140	AS9824 JCOM Co., Ltd.	`12.51ms` from Tokyo, JP
210.20.118.81	AS9824 JCOM Co., Ltd.	`85.01ms` from Agana Heights Village, GU
210.20.120.1	AS9824 JCOM Co., Ltd.	`17.35ms` from Tokyo, JP
210.20.64.1	AS9824 JCOM Co., Ltd.	`2.07ms` from Tokyo, JP
210.20.121.176	AS9824 JCOM Co., Ltd.	`27.63ms` 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
155.102.206.208	AS24429 Zhejiang Taobao Network Co.,Ltd	`0.18ms` from Frankfurt am Main, DE
78.68.26.144	AS3301 Telia Company AB	`3.01ms` from Goeteborg, SE
60.161.46.64	AS4134 CHINANET-BACKBONE	`5.88ms` from Kunming, CN
181.133.14.128	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.11ms` from Medellin, CO
45.39.177.160	AS64267 Sprious LLC	`0.56ms` from New York City, US
115.227.232.192	AS4134 CHINANET-BACKBONE	`3.96ms` from Ningbo, CN
89.80.238.64	AS5410 Bouygues Telecom SA	`3.97ms` from Paris, FR
177.39.245.240	AS53135 BRASIL TECPAR \| AMIGO \| AVATO	`2.69ms` from Rio de Janeiro, BR
59.9.80.48	AS4766 Korea Telecom	`2.08ms` from Seoul, KR
60.114.125.32	AS17676 SoftBank Corp.	`3.22ms` from Tokyo, JP
62.103.72.64	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.45ms` from Athens, GR
34.221.106.160	AS16509 Amazon.com, Inc.	`0.51ms` from Boardman, US
144.85.142.80	AS12350 VTX Services SA	`1.13ms` from Geneve, CH
112.93.51.0	AS17816 China Unicom IP network China169 Guangdong province	`4.75ms` from Guangzhou, CN
71.60.123.112	AS7922 Comcast Cable Communications, LLC	`12.49ms` from Herndon, US
209.213.151.128	AS17049 MBO Video, LLC	`6.71ms` from Kansas City, US
66.143.32.0	AS7018 AT&T Enterprises, LLC	`1.57ms` from Kansas City, US
3.109.160.64	AS16509 Amazon.com, Inc.	`0.10ms` from Mumbai, IN
20.252.26.48	AS8075 Microsoft Corporation	`0.32ms` from Quincy, US
87.25.234.0	AS3269 Telecom Italia S.p.A.	`3.55ms` from Rome, IT
82.107.47.0	AS3269 Telecom Italia S.p.A.	`4.38ms` from Rome, IT
79.15.207.0	AS3269 Telecom Italia S.p.A.	`6.18ms` from Rome, IT
110.44.34.48	AS17878 DREAMMARK1	`1.04ms` from Seoul, KR
198.91.209.48	AS11814 Distributel Communications Limited	`10.88ms` from Toronto, CA
70.174.30.32	AS22773 Cox Communications Inc.	`9.74ms` from Ashburn, US

Traceroute

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

traceroute -a -n -q1 210.20.78.172

traceroute to 210.20.78.172 (210.20.78.172): 64 hops max, 52 byte packets

1 [AS136258] 185.126.237.1 0.246 ms

2 [AS6206] 91.199.50.17 0.254 ms

3 [AS174] 149.14.244.217 0.791 ms

4 [AS174] 154.54.38.245 12.769 ms

5 [AS174] 154.54.59.177 15.248 ms

6 [AS174] 154.54.63.145 16.603 ms

7 [AS174] 154.54.63.142 22.304 ms

8 [AS174] 154.54.62.217 30.036 ms

9 [AS174] 154.54.60.130 39.104 ms

10 [AS174] 154.54.90.74 177.986 ms

11 [AS174] 154.54.95.157 243.302 ms

12 [AS174] 154.18.0.99 249.254 ms

13 [AS9824] 116.214.18.25 242.642 ms

14 *

15 *

16 *

17 [AS9824] 210.20.78.172 266.648 ms

Measurement taken from

IPinfo ProbeNet in Bucharest, RO

On December 20th 2025

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