133.237.0.0/16

AS23820 · Rakuten Group, Inc.

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Summary

Country	Japan
Domain	rakuten.co.jp
ASN	AS23820
Registry	JPNIC
ID	RAKUTEN-CIDR-BLK-JP

WHOIS Details

inetnum:        133.237.0.0 - 133.237.255.255
netname:        Rakuten-CIDR-BLK-JP
descr:          Rakuten Group, Inc.
remarks:        Email address for spam or abuse complaints : nic@mail.rakuten.com
country:        JP
admin-c:        JP00179607
tech-c:         JP00179607
last-modified:  2022-01-20T02:49:38Z
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)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 133.0.0.0/8

Range	ASN	Company	Num of IPs
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.186.128.0/17	AS45974	NHN JAPAN Corp.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.186.0.0/20	AS10010	TOKAI Communications Corporation	4,096
133.32.80.0/20	AS131918	SHONAN CABLE NETWORK	4,096
133.247.144.0/20	AS131949	General Incorporated Foundation Aso Telework Center	4,096
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.32.176.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.88.48.0/20	AS23778	IMIZU CABLE NETWORK CO.,LTD.	4,096
133.226.160.0/20	AS17958	Kasaoka Cable Vision LIMITED	4,096
133.88.32.0/20	AS18281	Chitahanto Cable Network Corp.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.32.208.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.247.240.0/20	AS131923	MCAT Ltd.	4,096

Hosted domains

There are 69 domain names hosted across 34 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.237.60.125	2cho.com	8
133.237.63.102	vx4xc.tk	4
133.237.180.61	95lqn.tk	2
133.237.180.69	rakuten.co.jp	2
133.237.79.75	glnq9.tk	2
133.237.72.43	kdreams.co.jp	1
133.237.180.185	katogolf.com	1
133.237.49.168	syf.jp	1
133.237.180.70	rakuten.net	1
133.237.180.60	boss-oms.jp	1
133.237.16.130	7jlrk.tk	1
133.237.132.93	rakuten.jp	1
133.237.128.2	infoseek.ne.jp	1
133.237.176.89	rakuten-toushin.co.jp	1
133.237.79.76	viber.co.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

6,252 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.237.5.254	AS23820 Rakuten Group, Inc.	`2.00ms` from Tokyo, JP
133.237.4.52	AS23820 Rakuten Group, Inc.	`1.81ms` from Tokyo, JP
133.237.3.253	AS23820 Rakuten Group, Inc.	`2.08ms` from Tokyo, JP
133.237.0.61	AS23820 Rakuten Group, Inc.	`1.63ms` from Tokyo, JP
133.237.2.253	AS23820 Rakuten Group, Inc.	`2.07ms` from Tokyo, JP
133.237.1.254	AS23820 Rakuten Group, Inc.	`2.08ms` from Tokyo, JP
133.237.92.185	AS23820 Rakuten Group, Inc.	`2.43ms` from Osaka, JP
133.237.175.6	AS23820 Rakuten Group, Inc.	`1.31ms` from Tokyo, JP
133.237.7.188	AS23820 Rakuten Group, Inc.	`2.54ms` from Tokyo, JP
133.237.179.144	AS23820 Rakuten Group, Inc.	`1.20ms` from Tokyo, JP
133.237.15.253	AS23820 Rakuten Group, Inc.	`2.04ms` from Tokyo, JP
133.237.191.167	AS23820 Rakuten Group, Inc.	`1.28ms` from Tokyo, JP
133.237.78.2	AS23820 Rakuten Group, Inc.	`2.31ms` from Tokyo, JP
133.237.93.36	AS23820 Rakuten Group, Inc.	`2.19ms` from Osaka, JP
133.237.61.63	AS23820 Rakuten Group, Inc.	`1.22ms` from Tokyo, JP
133.237.41.98	AS23820 Rakuten Group, Inc.	`1.37ms` from Tokyo, JP
133.237.67.11	AS23820 Rakuten Group, Inc.	`1.22ms` from Tokyo, JP
133.237.90.55	AS23820 Rakuten Group, Inc.	`1.47ms` from Osaka, JP
133.237.24.75	AS23820 Rakuten Group, Inc.	`2.05ms` from Tokyo, JP
133.237.18.102	AS23820 Rakuten Group, Inc.	`1.92ms` from Tokyo, JP
133.237.72.14	AS23820 Rakuten Group, Inc.	`1.60ms` from Tokyo, JP
133.237.70.156	AS23820 Rakuten Group, Inc.	`1.22ms` from Tokyo, JP
133.237.135.194	AS23820 Rakuten Group, Inc.	`1.23ms` from Tokyo, JP
133.237.112.55	AS23820 Rakuten Group, Inc.	`5.43ms` from Tokyo, JP
133.237.134.8	AS23820 Rakuten Group, Inc.	`1.23ms` 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
20.114.220.32	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
109.237.246.224	AS16347 ADISTA SAS	`3.84ms` from Lille, FR
130.162.183.16	AS31898 Oracle Corporation	`0.25ms` from London, GB
213.40.91.32	AS9142 Internexus Networks Limited	`8.94ms` from London, GB
49.144.121.32	AS9299 Philippine Long Distance Telephone Company	`2.17ms` from Manila, PH
176.153.57.160	AS5410 Bouygues Telecom SA	`13.87ms` from Marseille, FR
151.30.62.208	AS1267 WIND TRE S.P.A.	`2.50ms` from Milan, IT
88.93.202.208	AS2119 Telenor Norge AS	`9.31ms` from Oslo, NO
27.218.78.128	AS4837 CHINA UNICOM China169 Backbone	`8.78ms` from Qingdao, CN
124.199.138.0	AS17864 SK Broadband Co Ltd	`1.57ms` from Seoul, KR
119.197.165.240	AS4766 Korea Telecom	`1.34ms` from Seoul, KR
175.117.122.32	AS9318 SK Broadband Co Ltd	`6.42ms` from Seoul, KR
94.145.198.64	AS9158 Telenor A/S	`4.24ms` from Skanderborg, DK
37.150.251.128	AS9198 JSC Kazakhtelecom	`5.11ms` from Almaty, KZ
173.48.147.48	AS701 Verizon Business	`2.02ms` from Boston, US
82.78.71.80	AS8708 DIGI ROMANIA S.A.	`4.82ms` from Bucharest, RO
3.140.137.16	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
18.153.214.96	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
40.27.248.176	AS9304 HGC Global Communications Limited	`2.58ms` from Hong Kong, HK
72.210.115.224	AS22773 Cox Communications Inc.	`5.33ms` from Kansas City, US
103.77.47.224	AS23860 Alliance Broadband Services Pvt. Ltd.	`0.25ms` from Kolkata, IN
175.175.117.224	AS4837 CHINA UNICOM China169 Backbone	`7.80ms` from Liaoyang, CN
35.227.88.16	AS396982 Google LLC	`0.16ms` from Moncks Corner, US
133.207.219.32	AS2518 BIGLOBE Inc.	`6.55ms` from Osaka, JP
76.158.33.224	AS7922 Comcast Cable Communications, LLC	`9.36ms` from San Jose, 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 -m8 133.237.123.202

traceroute to 133.237.123.202 (133.237.123.202): 8 hops max, 52 byte packets

2 [AS749] 11.73.7.181 0.21 ms

3 *

4 *

5 [AS9318] 211.176.57.117 1.814 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On October 17th 2025

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