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:         abuse@home.ne.jp
abuse-mailbox:  abuse@home.ne.jp
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
auth:           # Filtered
remarks:        abuse@home.ne.jp 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:         abuse@home.ne.jp
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:         abuse@home.ne.jp
admin-c:        JTCL2-AP
tech-c:         JTCL2-AP
nic-hdl:        AJ428-AP
remarks:        Generated from irt object IRT-JTCL-JP
remarks:        abuse@home.ne.jp was validated on 2025-11-11
abuse-mailbox:  abuse@home.ne.jp
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:         abuse@home.ne.jp
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	AS4739	AAPT Limited	131,072
210.8.0.0/15	AS17535	AAPT Limited	131,072
210.8.0.0/15	AS2764	AAPT Limited	131,072
210.137.0.0/16	AS2907	Research Organization of Information and Systems, National Institute of Informatics	65,536
210.124.0.0/16	AS9856	LG DACOM Corporation	65,536
210.58.0.0/16	AS131601	ETWebs Taiwan Co. Ltd.	65,536
210.58.0.0/16	AS9311	ETWebs Taiwan Co. Ltd.	65,536
210.197.0.0/16	AS4725	SoftBank Corp.	65,536
210.91.0.0/16	AS4766	Korea Telecom	65,536
210.202.0.0/16	AS9311	Asia Pacific Telecom Co., Ltd	65,536
210.216.0.0/16	AS9319	LG DACOM Corporation	65,536
210.50.0.0/16	AS9443	VOCUS PTY LTD	65,536
210.65.0.0/16	AS3462	Data Communication Business Group,	65,536
210.225.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.232.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.108.0.0/16	AS18305	LG DACOM Corporation	65,536
210.124.0.0/16	AS3786	LG DACOM Corporation	65,536
210.216.0.0/16	AS3786	LG DACOM Corporation	65,536
210.25.0.0/16	AS4538	China Education and Research Network	65,536
210.147.0.0/16	AS2518	BIGLOBE Inc.	65,536
210.202.0.0/16	AS7482	Asia Pacific Telecom Co., Ltd	65,536
210.3.0.0/16	AS9304	HGC Global Communications Limited	65,536
210.154.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.182.0.0/16	AS9319	LG DACOM Corporation	65,536
210.3.0.0/16	AS140881	HGC Global Communications Limited	65,536
210.144.0.0/16	AS4673	NTT DATA CORPORATION	65,536
210.61.0.0/16	AS3462	Data Communication Business Group,	65,536
210.58.0.0/16	AS131627	ETWebs Taiwan Co. Ltd.	65,536
210.164.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.190.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.122.0.0/16	AS17837	SEJONG NETWORKS	65,536
210.108.0.0/16	AS3786	LG DACOM Corporation	65,536
210.248.0.0/16	AS4713	NTT DOCOMO BUSINESS,Inc.	65,536
210.138.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.128.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.120.0.0/16	AS3786	LG DACOM Corporation	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
210.108.0.0/16	AS10183	LG DACOM Corporation	65,536
210.11.0.0/16	AS2764	AAPT Limited	65,536
210.149.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.148.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
210.124.0.0/16	AS9319	LG DACOM Corporation	65,536
210.195.0.0/16	AS4788	TM TECHNOLOGY SERVICES SDN. BHD.	65,536
210.58.0.0/16	AS7482	ETWebs Taiwan Co. Ltd.	65,536
210.216.0.0/16	AS7562	LG DACOM Corporation	65,536
210.108.0.0/16	AS9852	LG DACOM Corporation	65,536
210.58.0.0/16	AS22787	ETWebs Taiwan Co. Ltd.	65,536
210.69.0.0/16	AS4782	Government Service Network (GSN)	65,536
210.122.0.0/16	AS9848	SEJONG NETWORKS	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
210.20.145.204	meiryushin.info	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

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

IP Address	ASN	Details
210.20.43.75	AS9824 JCOM Co., Ltd.	`13.52ms` from Tokyo, JP
210.20.60.1	AS9824 JCOM Co., Ltd.	`3.92ms` from Tokyo, JP
210.20.228.1	AS9824 JCOM Co., Ltd.	`4.90ms` from Tokyo, JP
210.20.128.1	AS9824 JCOM Co., Ltd.	`2.59ms` from Tokyo, JP
210.20.176.1	AS9824 JCOM Co., Ltd.	`2.16ms` from Tokyo, JP
210.20.172.1	AS9824 JCOM Co., Ltd.	`3.44ms` from Tokyo, JP
210.20.190.207	AS9824 JCOM Co., Ltd.	`11.97ms` from Tokyo, JP
210.20.59.46	AS9824 JCOM Co., Ltd.	`13.29ms` from Tokyo, JP
210.20.108.1	AS9824 JCOM Co., Ltd.	`3.71ms` from Tokyo, JP
210.20.161.31	AS9824 JCOM Co., Ltd.	`15.31ms` from Tokyo, JP
210.20.133.9	AS9824 JCOM Co., Ltd.	`8.87ms` from Tokyo, JP
210.20.33.57	AS9824 JCOM Co., Ltd.	`13.01ms` from Tokyo, JP
210.20.185.99	AS9824 JCOM Co., Ltd.	`6.18ms` from Tokyo, JP
210.20.47.70	AS9824 JCOM Co., Ltd.	`12.02ms` from Tokyo, JP
210.20.72.1	AS9824 JCOM Co., Ltd.	`3.79ms` from Tokyo, JP
210.20.196.1	AS9824 JCOM Co., Ltd.	`1.96ms` from Tokyo, JP
210.20.224.1	AS9824 JCOM Co., Ltd.	`4.95ms` from Tokyo, JP
210.20.139.206	AS9824 JCOM Co., Ltd.	`9.22ms` from Tokyo, JP
210.20.87.109	AS9824 JCOM Co., Ltd.	`11.97ms` from Tokyo, JP
210.20.106.140	AS9824 JCOM Co., Ltd.	`7.08ms` from Tokyo, JP
210.20.203.189	AS9824 JCOM Co., Ltd.	`9.93ms` from Tokyo, JP
210.20.178.243	AS9824 JCOM Co., Ltd.	`15.87ms` from Tokyo, JP
210.20.36.1	AS9824 JCOM Co., Ltd.	`3.51ms` from Tokyo, JP
210.20.166.10	AS9824 JCOM Co., Ltd.	`13.77ms` from Tokyo, JP
210.20.138.218	AS9824 JCOM Co., Ltd.	`11.82ms` 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
94.157.72.208	AS50266 Odido Netherlands B.V.	`2.76ms` from Amsterdam, NL
190.242.177.32	AS23520 Columbus Networks USA, Inc.	`15.39ms` from Bogota, CO
45.7.244.160	AS265736 SCDPLANET S.A.	`2.42ms` from Buenos Aires, AR
113.218.210.80	AS4134 CHINANET-BACKBONE	`2.45ms` from Changsha, CN
34.46.101.240	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
91.47.192.96	AS3320 Deutsche Telekom AG	`1.38ms` from Frankfurt am Main, DE
77.3.210.96	AS6805 Telefonica Germany GmbH & Co.OHG	`1.14ms` from Hamburg, DE
80.43.81.32	AS13285 TalkTalk Communications Limited	`4.39ms` from London, GB
173.211.76.176	AS21769 Colocation America Corporation	`0.21ms` from Los Angeles, US
45.143.155.48	AS204957 GREEN FLOID LLC	`0.26ms` from Miami, US
14.11.211.160	AS2516 KDDI CORPORATION	`7.70ms` from Osaka, JP
3.219.242.112	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
171.95.102.128	AS4134 CHINANET-BACKBONE	`6.27ms` from Chengdu, CN
74.139.205.128	AS10796 Charter Communications Inc	`12.78ms` from Chicago, US
64.179.52.16	AS7029 Windstream Communications LLC	`8.38ms` from Chicago, US
62.198.49.32	AS3308 Telia Company AB	`1.32ms` from Copenhagen, DK
69.149.208.80	AS7018 AT&T Enterprises, LLC	`9.95ms` from Dallas, US
50.99.106.96	AS852 TELUS Communications Inc.	`2.11ms` from Edmonton, CA
113.188.77.208	AS45899 VNPT Corp	`2.53ms` from Ho Chi Minh City, VN
51.211.117.32	AS25019 Saudi Telecom Company JSC	`5.20ms` from Jeddah, SA
95.95.174.112	AS2860 NOS COMUNICACOES, S.A.	`1.97ms` from Lisbon, PT
62.244.187.48	AS25180 Exponential-E Ltd.	`2.16ms` from London, GB
81.33.230.32	AS3352 TELEFONICA DE ESPANA S.A.U.	`4.45ms` from Madrid, ES
73.179.32.192	AS7922 Comcast Cable Communications, LLC	`8.95ms` from Miami, US
73.104.53.16	AS7922 Comcast Cable Communications, LLC	`6.48ms` from Orlando, US

Traceroute

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

traceroute -a -n -q1 -f2 -m11 210.20.4.185

traceroute to 210.20.4.185 (210.20.4.185): 11 hops max, 52 byte packets

2 [] 156.146.32.232 0.149 ms

3 [AS60068] 185.229.188.51 0.21 ms

4 [] 79.127.192.162 44.998 ms

5 [] 79.127.192.42 129.469 ms

6 [] 138.199.0.37 129.709 ms

7 *

8 [AS9824] 203.165.0.57 151.153 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On December 14th 2025

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