AS23820

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Summary

IP address summary information
Name	Rakuten Group, Inc.
Country	Japan
Website	host.io/rakuten.co.jp·rakuten.co.jp
Hosted domains	74
IPv4 addresses	69,632
IPv6 addresses	8.54 × 10²⁸
ASN type	ISP
Registry	JPNIC
Updated	4 years ago on Feb 18, 2022

Ranking

#6,990

Overall rank

among 74,870 networks

Traffic

#13,189

Infrastructure

#4,702

#149inJapan

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

Japan
100%

Held location over 90 days: 85%
Held location over 1 year: 92%
Median days between moves: 38 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
133.237.0.0/16	Rakuten Group, Inc.	65,536
133.237.0.0/17	Rakuten Group, Inc.	32,768
133.237.128.0/17	Rakuten Group, Inc.	32,768
202.72.48.0/20	Rakuten Group, Inc.	4,096
202.72.48.0/21	Rakuten Group, Inc.	2,048
202.72.56.0/21	Rakuten Group, Inc.	2,048
202.72.48.0/22	Rakuten Group, Inc.	1,024
202.72.52.0/22	Rakuten Group, Inc.	1,024
202.72.56.0/22	Rakuten Group, Inc.	1,024
202.72.60.0/22	Rakuten Group, Inc.	1,024

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 74 domain names hosted across 36 IP addresses on this ASN.

IP Address	Domain	Count
133.237.24.116		18
133.237.69.3		9
133.237.146.18		8
133.237.60.125		5
133.237.180.217		3

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs1
Retail1

Category	In AS23820	Example IP
Retail	1	133.237.7.126

New

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Places

Peers

There are 20 peers for this ASN.

ASN	Name	Rank

Upstreams

There are 4 upstreams for this ASN.

ASN	Name	Rank
AS2497	Internet Initiative Japan Inc.
AS2516	KDDI CORPORATION
AS2914	NTT America, Inc.
AS138384	Rakuten Mobile Network, Inc.

Downstreams

There are 1 downstreams for this ASN.

ASN	Name	Rank
AS131914	Rakuten Group, Inc.

Pingable IPs

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

IP Address	ASN	Details
133.237.23.249 Ping	AS23820Rakuten Group, Inc.	1.89ms from Tokyo, JP
202.72.58.68 Ping	AS23820Rakuten Group, Inc.	2.04ms from Tokyo, JP
202.72.49.137 Ping	AS23820Rakuten Group, Inc.	0.39ms from Osaka, JP
133.237.113.252 Ping	AS23820Rakuten Group, Inc.	5.39ms from Tokyo, JP
133.237.175.7 Ping	AS23820Rakuten Group, Inc.	1.92ms from Tokyo, JP
133.237.198.121 Ping	AS23820Rakuten Group, Inc.	1.84ms from Tokyo, JP
133.237.43.28 Ping	AS23820Rakuten Group, Inc.	1.53ms from Tokyo, JP
133.237.18.102 Ping	AS23820Rakuten Group, Inc.	2.11ms from Tokyo, JP
133.237.138.37 Ping	AS23820Rakuten Group, Inc.	2.00ms from Tokyo, JP
133.237.160.4 Ping	AS23820Rakuten Group, Inc.	1.40ms from Tokyo, JP

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS23820


133.237.190.251	Tokyo, Japan
133.237.190.252	Tokyo, Japan
133.237.247.2	Tokyo, Japan
133.237.247.0	Tokyo, Japan
133.237.134.252	Tokyo, Japan
133.237.134.251	Tokyo, Japan
133.237.154.251	Osaka, Japan
133.237.154.252	Osaka, Japan
133.237.190.125	Tokyo, Japan
202.72.48.177	Tokyo, Japan

Important routers in AS23820

Traceroute

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

$ traceroute -a -n -q1 -f4 -m18 133.237.86.144

traceroute to 133.237.86.144 (133.237.86.144): 18 hops max, 52 byte packets

4 [AS174] 154.54.61.101 13.444 ms

5 [AS174] 154.54.47.137 84 ms

6 [AS174] 154.54.169.178 100.81 ms

7 [AS174] 154.54.29.134 107.674 ms

8 [AS174] 154.54.40.249 115.295 ms

9 [AS174] 154.54.165.26 126.465 ms

10 [AS174] 154.54.166.58 135.16 ms

11 [AS174] 154.54.44.86 145.556 ms

12 [AS174] 154.54.27.118 156.875 ms

13 [AS174] 38.104.84.75 145.348 ms

14 [AS2497] 58.138.88.145 241.766 ms

15 [AS2497] 58.138.101.30 241.801 ms

16 *

17 *

18 *

Measurement taken from

IPinfo ProbeNet in Braga, PT

On October 16, 2026

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS23820 at robtex.

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AS23820

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS23820

Important routers in AS23820

Traceroute

Related Networks

AS10233

AS131079

AS131154

AS18132

AS24282

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

IP Ranges

Places

Important routers in AS23820

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

AS10233

AS131079

AS131154

AS18132

AS24282

AS4676