23820 RAKUTEN - Rakuten Group, Inc., JP
Adjacency: 4 Upstream: 3 Downstream: 1
Upstream Adjacent AS list
AS2497 IIJ - Internet Initiative Japan Inc., JP
AS2516 KDDI - KDDI CORPORATION, JP
AS2914 NTT-DATA-2914 - NTT America, Inc., US
Downstream Adjacent AS list
AS131914 DD-NET - Rakuten Group, Inc., JP
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 1658 AS23820 ORG+TRN Originate: 143616 /14.87 Transit: 1792 /21.19 RAKUTEN - Rakuten Group, Inc., JP
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 5699 AS23820 RAKUTEN - Rakuten Group, Inc., JP 11 8 0 3 8 72.73% Prefix AS Path Aggregation Suggestion 133.237.0.0/16 4777 2516 23820 133.237.0.0/17 4777 2516 23820 - Withdrawn - matching aggregate 133.237.0.0/16 4777 2516 23820 133.237.128.0/17 4777 2516 23820 - Withdrawn - matching aggregate 133.237.0.0/16 4777 2516 23820 133.237.248.0/24 4777 4713 2914 23820 202.72.48.0/20 4777 2516 23820 202.72.48.0/21 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820 202.72.48.0/22 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820 202.72.52.0/22 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820 202.72.56.0/21 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820 202.72.56.0/22 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820 202.72.60.0/22 4777 2516 23820 - Withdrawn - matching aggregate 202.72.48.0/20 4777 2516 23820
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS23820 10 More Specifics 11 Total Advertisements RAKUTEN - Rakuten Group, Inc., JP
133.237.0.0/16 133.0.0.0/8
133.237.0.0/17 133.0.0.0/8
133.237.128.0/17 133.0.0.0/8
133.237.248.0/24 133.0.0.0/8
202.72.48.0/21 202.72.48.0/20
202.72.48.0/22 202.72.48.0/20
202.72.52.0/22 202.72.48.0/20
202.72.56.0/21 202.72.48.0/20
202.72.56.0/22 202.72.48.0/20
202.72.60.0/22 202.72.48.0/20
whois: 402591
IANA has recorded AS23820 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS23820\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS23552 - AS24575'
as-block: AS23552 - AS24575
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
remarks: AS23889 has been transfered to AfriNIC
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2009-09-29T06:04:16Z
source: APNIC
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phone: +61 7 3858 3100
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admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
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notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS23773 - AS23836'
as-block: AS23773 - AS23836
descr: JPNIC-2Byte-ASBLOCK-AP
descr: for assignment to JPNIC members
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can be
remarks: queried at whois.nic.ad.jp. To only display English output,
remarks: add '/e' at the end of command,
remarks: e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by: APNIC-HM
mnt-lower: MAINT-JPNIC
last-modified: 2009-11-19T01:11:45Z
source: APNIC
role: Japan Network Information Center
address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047, Japan
country: JP
phone: +81-3-5297-2311
fax-no: +81-3-5297-2312
e-mail: hostmaster@nic.ad.jp
admin-c: JI13-AP
tech-c: JE53-AP
nic-hdl: JNIC1-AP
mnt-by: MAINT-JPNIC
last-modified: 2022-01-05T03:04:02Z
source: APNIC
% Information related to 'AS23820'
% Abuse contact for 'AS23820' is 'hostmaster@nic.ad.jp'
aut-num: AS23820
as-name: Rakuten
descr: Rakuten Group, Inc.
descr: Rakuten Crimson House,
descr: Rakuten Crimson House, 1-14-1 Tamagawa,
descr: Setagaya-ku, Tokyo, 158-0094, Tokyo,Japan
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: Email address for spam or abuse complaints : abuse@mail.rakuten.com
country: JP
mnt-by: MAINT-JPNIC
mnt-lower: MAINT-JPNIC
mnt-irt: IRT-JPNIC-JP
last-modified: 2024-08-15T05:22:35Z
source: APNIC
irt: IRT-JPNIC-JP
address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047, japan
e-mail: hostmaster@nic.ad.jp
abuse-mailbox: hostmaster@nic.ad.jp
phone: +81-3-5297-2311
fax-no: +81-3-5297-2312
admin-c: JNIC1-AP
tech-c: JNIC1-AP
auth: # Filtered
remarks: hostmaster@nic.ad.jp was validated on 2024-11-27
mnt-by: MAINT-JPNIC
last-modified: 2025-09-04T01:00:00Z
source: APNIC
role: Japan Network Information Center
address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047, Japan
country: JP
phone: +81-3-5297-2311
fax-no: +81-3-5297-2312
e-mail: hostmaster@nic.ad.jp
admin-c: JI13-AP
tech-c: JE53-AP
nic-hdl: JNIC1-AP
mnt-by: MAINT-JPNIC
last-modified: 2022-01-05T03:04:02Z
source: APNIC
% Information related to 'AS23820'
aut-num: AS23820
as-name: RAKUTEN
descr: Rakuten Group, Inc.
import:
export:
country: JP
admin-c: JP00179607
tech-c: JP00179607
last-modified: 2022-02-18T22:59:02Z
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
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU4)