17661 NHN-JAPAN NHN JAPAN Corp., JP
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS2497 IIJ Internet Initiative Japan Inc., JP
AS2914 NTT-LTD-2914, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 9564 AS17661 ORIGIN Originate: 11520 /18.51 Transit: 0 /0.00 NHN-JAPAN NHN JAPAN Corp., 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 % 5429 AS17661 NHN-JAPAN NHN JAPAN Corp., JP 25 12 3 16 9 36.00% Prefix AS Path Aggregation Suggestion 27.147.96.0/20 2914 17661 103.2.29.0/24 2914 17661 119.235.225.0/24 2914 17661 119.235.226.0/23 2914 17661 119.235.228.0/22 2914 17661 119.235.233.0/24 2914 17661 119.235.234.0/24 2914 17661 119.235.238.0/23 2914 17661 183.90.192.0/23 2914 17661 + Announce - aggregate of 183.90.192.0/24 (2914 17661) and 183.90.193.0/24 (2914 17661) 183.90.192.0/24 2914 17661 - Withdrawn - aggregated with 183.90.193.0/24 (2914 17661) 183.90.193.0/24 2914 17661 - Withdrawn - aggregated with 183.90.192.0/24 (2914 17661) 183.90.195.0/24 2914 17661 183.90.196.0/23 2914 17661 + Announce - aggregate of 183.90.196.0/24 (2914 17661) and 183.90.197.0/24 (2914 17661) 183.90.196.0/24 2914 17661 - Withdrawn - aggregated with 183.90.197.0/24 (2914 17661) 183.90.197.0/24 2914 17661 - Withdrawn - aggregated with 183.90.196.0/24 (2914 17661) 183.90.199.0/24 2914 17661 183.90.200.0/21 2914 17661 + Announce - aggregate of 183.90.200.0/22 (2914 17661) and 183.90.204.0/22 (2914 17661) 183.90.200.0/24 2914 17661 - Withdrawn - aggregated with 183.90.201.0/24 (2914 17661) 183.90.201.0/24 2914 17661 - Withdrawn - aggregated with 183.90.200.0/24 (2914 17661) 183.90.202.0/24 2914 17661 - Withdrawn - aggregated with 183.90.203.0/24 (2914 17661) 183.90.203.0/24 2914 17661 - Withdrawn - aggregated with 183.90.202.0/24 (2914 17661) 183.90.204.0/24 2914 17661 - Withdrawn - aggregated with 183.90.205.0/24 (2914 17661) 183.90.205.0/24 2914 17661 - Withdrawn - aggregated with 183.90.204.0/24 (2914 17661) 183.90.206.0/24 2914 17661 - Withdrawn - aggregated with 183.90.207.0/24 (2914 17661) 183.90.207.0/24 2914 17661 - Withdrawn - aggregated with 183.90.206.0/24 (2914 17661) 183.90.221.0/24 2914 17661 183.90.222.0/24 2914 17661 203.104.159.0/24 2914 17661
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS17661 89 More Specifics 98 Total Advertisements NHN-JAPAN NHN JAPAN Corp., JP
133.223.16.0/24 133.0.0.0/8
133.223.17.0/24 133.0.0.0/8
133.223.18.0/24 133.0.0.0/8
133.223.19.0/24 133.0.0.0/8
133.223.20.0/24 133.0.0.0/8
133.223.21.0/24 133.0.0.0/8
133.223.22.0/24 133.0.0.0/8
133.223.23.0/24 133.0.0.0/8
133.223.24.0/24 133.0.0.0/8
133.223.25.0/24 133.0.0.0/8
133.223.26.0/24 133.0.0.0/8
133.223.27.0/24 133.0.0.0/8
133.223.28.0/24 133.0.0.0/8
133.223.29.0/24 133.0.0.0/8
133.223.30.0/24 133.0.0.0/8
133.223.31.0/24 133.0.0.0/8
133.223.32.0/24 133.0.0.0/8
133.223.33.0/24 133.0.0.0/8
133.223.34.0/24 133.0.0.0/8
133.223.35.0/24 133.0.0.0/8
133.223.36.0/24 133.0.0.0/8
133.223.37.0/24 133.0.0.0/8
133.223.38.0/24 133.0.0.0/8
133.223.39.0/24 133.0.0.0/8
133.223.40.0/24 133.0.0.0/8
133.223.41.0/24 133.0.0.0/8
133.223.42.0/24 133.0.0.0/8
133.223.43.0/24 133.0.0.0/8
133.223.44.0/24 133.0.0.0/8
133.223.45.0/24 133.0.0.0/8
133.223.46.0/24 133.0.0.0/8
133.223.47.0/24 133.0.0.0/8
133.223.48.0/24 133.0.0.0/8
133.223.49.0/24 133.0.0.0/8
133.223.50.0/24 133.0.0.0/8
133.223.51.0/24 133.0.0.0/8
133.223.52.0/24 133.0.0.0/8
133.223.53.0/24 133.0.0.0/8
133.223.54.0/24 133.0.0.0/8
133.223.55.0/24 133.0.0.0/8
133.223.56.0/24 133.0.0.0/8
133.223.57.0/24 133.0.0.0/8
133.223.58.0/24 133.0.0.0/8
133.223.59.0/24 133.0.0.0/8
133.223.60.0/24 133.0.0.0/8
133.223.61.0/24 133.0.0.0/8
133.223.62.0/24 133.0.0.0/8
133.223.63.0/24 133.0.0.0/8
133.223.64.0/24 133.0.0.0/8
133.223.65.0/24 133.0.0.0/8
133.223.66.0/24 133.0.0.0/8
133.223.67.0/24 133.0.0.0/8
133.223.68.0/24 133.0.0.0/8
133.223.69.0/24 133.0.0.0/8
133.223.70.0/24 133.0.0.0/8
133.223.71.0/24 133.0.0.0/8
133.223.72.0/24 133.0.0.0/8
133.223.73.0/24 133.0.0.0/8
133.223.74.0/24 133.0.0.0/8
133.223.75.0/24 133.0.0.0/8
133.223.76.0/24 133.0.0.0/8
133.223.77.0/24 133.0.0.0/8
133.223.78.0/24 133.0.0.0/8
133.223.79.0/24 133.0.0.0/8
133.223.80.0/24 133.0.0.0/8
133.223.81.0/24 133.0.0.0/8
133.223.82.0/24 133.0.0.0/8
133.223.83.0/24 133.0.0.0/8
133.223.84.0/24 133.0.0.0/8
133.223.85.0/24 133.0.0.0/8
133.223.86.0/24 133.0.0.0/8
133.223.87.0/24 133.0.0.0/8
183.90.192.0/24 183.90.192.0/19
183.90.193.0/24 183.90.192.0/19
183.90.194.0/24 183.90.192.0/19
183.90.195.0/24 183.90.192.0/19
183.90.196.0/24 183.90.192.0/19
183.90.197.0/24 183.90.192.0/19
183.90.199.0/24 183.90.192.0/19
183.90.200.0/24 183.90.192.0/19
183.90.201.0/24 183.90.192.0/19
183.90.202.0/24 183.90.192.0/19
183.90.203.0/24 183.90.192.0/19
183.90.204.0/24 183.90.192.0/19
183.90.205.0/24 183.90.192.0/19
183.90.206.0/24 183.90.192.0/19
183.90.207.0/24 183.90.192.0/19
183.90.221.0/24 183.90.192.0/19
183.90.222.0/24 183.90.192.0/19
whois: 402590
IANA has recorded AS17661 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS17661\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17653 - AS18431'
as-block: AS17653 - AS18431
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2019-01-08T23:19:07Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS17661'
% Abuse contact for 'AS17661' is 'hostmaster@nic.ad.jp'
aut-num: AS17661
as-name: 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: MAINT-JPNIC
mnt-irt: IRT-JPNIC-JP
last-modified: 2019-05-13T01:14:54Z
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 'AS17661'
aut-num: AS17661
as-name: NHN-JAPAN
descr: NHN Cloud Japan Corporation
import:
export:
country: JP
admin-c: MC12430JP
tech-c: MC12430JP
last-modified: 2025-10-17T20:44:59Z
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-AU5)