133.237.128.0/17

AS23820 · Rakuten Group, Inc.

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Summary

Country	Japan
Domain	rakuten.co.jp
ASN	AS23820
Parent Range	133.237.0.0/16
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

Overlapping Ranges

BGP prefixes that contain 133.237.128.0/17

Range	ASN	Company	Num of IPs
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536

Nearby Ranges

BGP prefixes that overlap with 133.237.0.0/16

Range	ASN	Company	Num of IPs
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536

Hosted domains

There are 26 domain names hosted across 18 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.237.179.46	infoseek.co.jp	5
133.237.180.217	earnesteyes.com	3
133.237.180.159	rakuten.com.tw	2
133.237.180.61	95lqn.tk	2
133.237.180.69	rakuten.co.jp	2
133.237.157.30	alisaproject.com	1
133.237.176.89	rakuten-toushin.co.jp	1
133.237.128.144	rakuten-data-marketing.co.jp	1
133.237.180.70	rakuten.net	1
133.237.128.2	infoseek.ne.jp	1
133.237.128.229	jubilo-shop.jp	1
133.237.184.154	r10.to	1
133.237.132.93	rakuten.jp	1
133.237.185.47	kumastock.com	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

2,910 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
133.237.134.15	AS23820 Rakuten Group, Inc.	`1.25ms` from Tokyo, JP
133.237.136.7	AS23820 Rakuten Group, Inc.	`1.31ms` from Tokyo, JP
133.237.141.131	AS23820 Rakuten Group, Inc.	`1.42ms` from Tokyo, JP
133.237.132.39	AS23820 Rakuten Group, Inc.	`1.61ms` from Tokyo, JP
133.237.135.4	AS23820 Rakuten Group, Inc.	`1.24ms` from Tokyo, JP
133.237.138.36	AS23820 Rakuten Group, Inc.	`1.38ms` from Tokyo, JP
133.237.128.91	AS23820 Rakuten Group, Inc.	`1.22ms` from Tokyo, JP
133.237.130.94	AS23820 Rakuten Group, Inc.	`9.03ms` from Osaka, JP
133.237.129.80	AS23820 Rakuten Group, Inc.	`1.21ms` from Tokyo, JP
133.237.137.3	AS23820 Rakuten Group, Inc.	`1.35ms` from Tokyo, JP
133.237.185.52	AS23820 Rakuten Group, Inc.	`1.21ms` from Tokyo, JP
133.237.253.253	AS23820 Rakuten Group, Inc.	`1.62ms` from Tokyo, JP
133.237.154.130	AS23820 Rakuten Group, Inc.	`1.48ms` from Osaka, JP
133.237.174.52	AS23820 Rakuten Group, Inc.	`1.31ms` from Tokyo, JP
133.237.179.67	AS23820 Rakuten Group, Inc.	`1.21ms` from Tokyo, JP
133.237.155.138	AS23820 Rakuten Group, Inc.	`1.45ms` from Osaka, JP
133.237.158.128	AS23820 Rakuten Group, Inc.	`1.60ms` from Osaka, JP
133.237.156.13	AS23820 Rakuten Group, Inc.	`1.46ms` from Osaka, JP
133.237.157.118	AS23820 Rakuten Group, Inc.	`1.42ms` from Osaka, JP
133.237.184.41	AS23820 Rakuten Group, Inc.	`1.21ms` from Tokyo, JP
133.237.167.134	AS23820 Rakuten Group, Inc.	`1.41ms` from Tokyo, JP
133.237.180.188	AS23820 Rakuten Group, Inc.	`1.59ms` from Tokyo, JP
133.237.247.171	AS23820 Rakuten Group, Inc.	`0.35ms` from Osaka, JP
133.237.176.68	AS23820 Rakuten Group, Inc.	`1.21ms` from Tokyo, JP
133.237.161.29	AS23820 Rakuten Group, Inc.	`1.22ms` 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
92.47.80.1	AS9198 JSC Kazakhtelecom	`15.71ms` from Almaty, KZ
84.105.145.1	AS33915 Vodafone Libertel B.V.	`3.34ms` from Amsterdam, NL
185.171.50.129	AS49033 Critical Core BV	`0.74ms` from Amsterdam, NL
96.241.147.1	AS701 Verizon Business	`1.98ms` from Ashburn, US
75.136.158.1	AS20115 Charter Communications LLC	`5.05ms` from Atlanta, US
117.192.185.1	AS9829 National Internet Backbone	`13.56ms` from Bengaluru, IN
185.184.160.1	AS16097 HL komm Telekommunikations GmbH	`7.75ms` from Berlin, DE
186.87.81.1	AS10620 Telmex Colombia S.A.	`7.42ms` from Bogota, CO
190.25.59.1	AS19429 ETB - Colombia	`0.42ms` from Bogota, CO
188.83.33.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`3.16ms` from Braga, PT
181.31.222.1	AS7303 Telecom Argentina S.A.	`7.36ms` from Buenos Aires, AR
197.42.80.1	AS8452 TE-AS	`2.56ms` from Cairo, EG
69.128.31.97	AS4181 TDS TELECOM	`5.08ms` from Chicago, US
97.243.75.145	AS6167 Verizon Business	`12.61ms` from Chicago, US
32.48.69.241	AS7018 AT&T Enterprises, LLC	`3.64ms` from Chicago, US
72.176.41.161	AS11427 Charter Communications Inc	`6.32ms` from Dallas, US
115.114.14.17	AS4755 TATA Communications formerly VSNL is Leading ISP	`0.97ms` from Delhi, IN
38.13.228.1	AS32444 Anthem Broadband	`7.97ms` from Draper, US
52.208.147.193	AS16509 Amazon.com, Inc.	`0.21ms` from Dublin, IE
87.132.179.177	AS3320 Deutsche Telekom AG	`15.57ms` from Frankfurt am Main, DE
147.135.181.97	AS16276 OVH SAS	`0.09ms` from Gravelines, FR
183.52.24.1	AS4134 CHINANET-BACKBONE	`7.86ms` from Guangzhou, CN
123.158.48.1	AS4837 CHINA UNICOM China169 Backbone	`7.42ms` from Hangzhou, CN
14.128.58.65	AS152194 CTG Server Limited	`0.62ms` from Hong Kong, HK
49.68.252.1	AS4134 CHINANET-BACKBONE	`9.62ms` from Huai'an, CN

Traceroute

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

traceroute -a -n -q1 -m6 133.237.242.201

traceroute to 133.237.242.201 (133.237.242.201): 6 hops max, 52 byte packets

1 [AS2901] 198.59.104.2 0.145 ms

2 [AS2901] 198.59.96.134 0.12 ms

3 [AS2901] 198.59.96.128 0.17 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Albuquerque, US

On November 22nd 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.

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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