45688 UT-NSRG The University of Tokyo Interfaculty Initiative in Information Studies, JP
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS2907 SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 18637 AS45688 ORIGIN Originate: 3584 /20.19 Transit: 0 /0.00 UT-NSRG The University of Tokyo Interfaculty Initiative in Information Studies, 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 % 22646 AS45688 UT-NSRG The University of Tokyo Interfaculty 5 2 1 4 1 20.00% Prefix AS Path Aggregation Suggestion 133.69.160.0/22 4777 2500 2907 45688 133.69.168.0/21 4777 2500 2907 45688 + Announce - aggregate of 133.69.168.0/22 (4777 2500 2907 45688) and 133.69.172.0/22 (4777 2500 2907 45688) 133.69.168.0/22 4777 2500 2907 45688 - Withdrawn - aggregated with 133.69.172.0/22 (4777 2500 2907 45688) 133.69.172.0/22 4777 2500 2907 45688 - Withdrawn - aggregated with 133.69.168.0/22 (4777 2500 2907 45688) 133.69.176.0/24 4777 2500 2907 45688 133.69.184.0/24 4777 2500 2907 45688
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS45688 5 More Specifics 5 Total Advertisements UT-NSRG The University of Tokyo Interfaculty Initiative in Information Studies, JP
133.69.160.0/22 133.0.0.0/8
133.69.168.0/22 133.0.0.0/8
133.69.172.0/22 133.0.0.0/8
133.69.176.0/24 133.0.0.0/8
133.69.184.0/24 133.0.0.0/8
whois: 402332
IANA has recorded AS45688 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS45688\n % [whois.apnic.net]
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% Information related to 'AS45056 - AS46079'
as-block: AS45056 - AS46079
descr: APNIC ASN block
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remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
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mnt-lower: APNIC-HM
last-modified: 2009-09-29T05:48:11Z
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mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS45672 - AS45691'
as-block: AS45672 - AS45691
descr: JPNIC-2Byte-ASBLOCK-AP
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: for assignment to JPNIC members
remarks: Authoritative information regarding AS Number
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mnt-by: APNIC-HM
mnt-lower: MAINT-JPNIC
last-modified: 2009-04-02T05:06:23Z
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 'AS45688'
% Abuse contact for 'AS45688' is 'hostmaster@nic.ad.jp'
aut-num: AS45688
as-name: HGC1
descr: The University of Tokyo
descr: 2-11-16,Yayoi,Bunkyo-ku,Tokyo,Japan
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: Email address for spam or abuse complaints : info@hgc.jp
country: JP
mnt-by: MAINT-JPNIC
mnt-lower: MAINT-JPNIC
mnt-irt: IRT-JPNIC-JP
last-modified: 2024-08-29T00:11:54Z
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 'AS45688'
aut-num: AS45688
as-name: UT-NSRG
descr: The University of Tokyo Interfaculty Initiative in Information Studies
import: from AS7667 100 accept ANY
import: from AS9355 100 accept ANY
export: to AS7667 announce AS45688
export: to AS9355 announce AS45688
country: JP
admin-c: AN8396JP
tech-c: SY13866JP
last-modified: 2012-10-18T23:38:12Z
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remarks: output)
source: JPNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)