203.209.144.0/20

AS23620 · DMM.com LLC

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Summary

Country	Japan
Domain	dmm.com
ASN	AS23620
Registry	APNIC
ID	DMM-JP

WHOIS Details

inetnum:        203.209.144.0 - 203.209.159.255
netname:        DMM-JP
descr:          DMM.com LLC
country:        JP
org:            ORG-DCL2-AP
admin-c:        NE65-AP
tech-c:         NE65-AP
abuse-c:        AD1065-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-JP-DMM
mnt-routes:     MAINT-JP-DMM
mnt-irt:        IRT-DMM-JP
last-modified:  2021-01-14T01:37:56Z
source:         APNIC

irt:            IRT-DMM-JP
address:        Sumitomo Fudosan Roppongi Grand Tower 24F,
address:        3-2-1 Roppongi,
address:        Minato-ku,
address:        Tokyo 106-6224, JAPAN
e-mail:         as23620@dmm.com
abuse-mailbox:  as23620@dmm.com
admin-c:        NE65-AP
tech-c:         NE65-AP
auth:           # Filtered
remarks:        as23620@dmm.com is invalid
mnt-by:         MAINT-JP-DMM
last-modified:  2025-11-18T00:32:22Z
source:         APNIC

organisation:   ORG-DCL2-AP
org-name:       DMM.com LLC
org-type:       LIR
country:        JP
address:        24th floor
address:        Sumitomo Fudosan Roppongi Grand Tower
address:        3-2-1, Roppongi, Minato-ku
address:        Tokyo, Japan
phone:          +81-3-5797-8928
fax-no:         +81-3-5797-8913
e-mail:         as23620@dmm.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:55Z
source:         APNIC

role:           ABUSE DMMJP
country:        ZZ
address:        Sumitomo Fudosan Roppongi Grand Tower 24F,
address:        3-2-1 Roppongi,
address:        Minato-ku,
address:        Tokyo 106-6224, JAPAN
phone:          +000000000
e-mail:         as23620@dmm.com
admin-c:        NE65-AP
tech-c:         NE65-AP
nic-hdl:        AD1065-AP
remarks:        Generated from irt object IRT-DMM-JP
remarks:        as23620@dmm.com is invalid
abuse-mailbox:  as23620@dmm.com
mnt-by:         APNIC-ABUSE
last-modified:  2024-09-25T13:07:30Z
source:         APNIC

person:         Network Engineer
address:        Sumitomo Fudosan Roppongi Grand Tower 24F,
address:        3-2-1 Roppongi,
address:        Minato-ku,
address:        Tokyo 106-6224, JAPAN
country:        JP
phone:          +81-3-5797-8928
e-mail:         as23620@dmm.com
nic-hdl:        NE65-AP
mnt-by:         MAINT-JP-DMMLABO
fax-no:         +81-3-5797-8913
last-modified:  2018-06-20T01:11:33Z
source:         APNIC

route:          203.209.144.0/20
origin:         AS23620
descr:          DMM.com LLC 24th floor Sumitomo Fudosan Roppongi Grand Tower 3-2-1, Roppongi, Minato-ku Tokyo, Japan
mnt-by:         MAINT-JP-DMM
last-modified:  2020-11-05T06:42:48Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.209.0.0/16

Range	ASN	Company	Num of IPs
203.209.192.0/19	AS133480	5G NETWORK OPERATIONS PTY LTD	8,192
203.209.224.0/19	AS37963	Zhejiang Ant Small And Micro Financial Services	8,192
203.209.192.0/19	AS63956	5G NETWORK OPERATIONS PTY LTD	8,192
203.209.192.0/19	AS9667	5G NETWORK OPERATIONS PTY LTD	8,192
203.209.160.0/20	AS7604	Zettagrid Pty Ltd	4,096
203.209.184.0/22	AS9621	OTNet CO.,Inc	1,024
203.209.176.0/22	AS18126	Chubu Telecommunications Co.,Inc.	1,024
203.209.180.0/22	AS24088	HTC International telecommunication joint stock company	1,024
203.209.191.0/24	AS45629	Jasmine International Tower	256
203.209.190.0/24	AS45298	PT. INTERLINK TECHNOLOGY	256

Hosted domains

There are 4 domain names hosted across 4 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.209.149.144	i-dol.tv	1
203.209.149.143	manji-group.com	1
203.209.159.4	dooga.co.jp	1
203.209.149.145	will-maker.com	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.209.145.10	AS23620 DMM.com LLC	`0.52ms` from Tokyo, JP
203.209.147.34	AS23620 DMM.com LLC	`0.42ms` from Tokyo, JP
203.209.153.253	AS23620 DMM.com LLC	`0.42ms` from Tokyo, JP
203.209.152.253	AS23620 DMM.com LLC	`0.46ms` from Tokyo, JP
203.209.146.81	AS23620 DMM.com LLC	`0.41ms` from Tokyo, JP
203.209.154.27	AS23620 DMM.com LLC	`0.43ms` from Tokyo, JP
203.209.149.1	AS23620 DMM.com LLC	`0.42ms` from Tokyo, JP
203.209.144.86	AS23620 DMM.com LLC	`0.43ms` 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
181.116.80.4	AS11664 Techtel LMDS Comunicaciones Interactivas S.A.	`16.49ms` from Buenos Aires, AR
85.118.203.180	AS34941 Cygrids Communications AB	`2.63ms` from Copenhagen, DK
98.50.214.4	AS7922 Comcast Cable Communications, LLC	`10.56ms` from Dallas, US
165.120.53.228	AS2856 British Telecommunications PLC	`4.52ms` from London, GB
85.58.251.52	AS12479 Orange Espagne SA	`9.48ms` from Madrid, ES
2.103.133.68	AS13285 TalkTalk Communications Limited	`6.86ms` from Manchester, GB
174.176.73.148	AS7922 Comcast Cable Communications, LLC	`2.48ms` from Miami, US
87.181.74.4	AS3320 Deutsche Telekom AG	`4.38ms` from Nuernberg, DE
31.14.185.196	AS206617 Neomedia S.r.l.	`1.33ms` from Palermo, IT
185.18.211.132	AS34177 CELESTE SAS	`5.46ms` from Paris, FR
187.205.56.148	AS8151 UNINET	`7.69ms` from Santiago de Queretaro, MX
188.209.137.52	AS203057 VillageNet Ltd	`0.38ms` from Seattle, US
112.175.241.68	AS4766 Korea Telecom	`1.14ms` from Seoul, KR
141.148.242.20	AS31898 Oracle Corporation	`0.17ms` from Amsterdam, NL
99.191.27.84	AS7018 AT&T Enterprises, LLC	`2.86ms` from Dallas, US
52.98.82.4	AS8075 Microsoft Corporation	`0.36ms` from Gaevle, SE
183.255.25.148	AS9808 China Mobile Communications Group Co., Ltd.	`15.23ms` from Guangzhou, CN
49.0.254.148	AS136907 HUAWEI CLOUDS	`1.07ms` from Hong Kong, HK
132.236.77.36	AS26 Cornell University	`7.22ms` from New York City, US
72.25.120.84	AS11414 Nvidia Corporation	`0.85ms` from Osaka, JP
186.99.111.100	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`9.72ms` from Panama, PA
31.13.90.52	AS32934 Facebook, Inc.	`0.10ms` from Rio de Janeiro, BR
132.197.217.100	AS6984 Verizon Business	`2.75ms` from San Jose, US
189.147.43.132	AS8151 UNINET	`3.88ms` from Santiago de Queretaro, MX
35.230.89.132	AS396982 Google LLC	`0.12ms` from The Dalles, 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 203.209.155.112

traceroute to 203.209.155.112 (203.209.155.112): 5 hops max, 52 byte packets

1 [AS15169] 142.251.241.125 229.985 ms

2 [AS15169] 108.170.248.184 229.678 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Frankfurt am Main, DE

On January 19th 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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