10209 SYNOPSYS-AS-JP-AP Japan HUB and Data Center, JP
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS4637 ASN-TELSTRA-GLOBAL Telstra Global, HK
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 34716 AS10209 ORIGIN Originate: 1024 /22.00 Transit: 0 /0.00 SYNOPSYS-AS-JP-AP Japan HUB and Data Center, 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 % 20328 AS10209 SYNOPSYS-AS-JP-AP Japan HUB and Data Center, 3 2 1 2 1 33.33% Prefix AS Path Aggregation Suggestion 198.182.50.0/23 4777 2516 4637 10209 198.182.50.0/23 4777 2497 3356 10209 + Announce - aggregate of 198.182.50.0/24 (4777 2497 3356 10209) and 198.182.51.0/24 (4777 2497 3356 10209) 198.182.50.0/24 4777 2497 3356 10209 - Withdrawn - aggregated with 198.182.51.0/24 (4777 2497 3356 10209) 198.182.51.0/24 4777 2497 3356 10209 - Withdrawn - aggregated with 198.182.50.0/24 (4777 2497 3356 10209)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS10209 3 More Specifics 3 Total Advertisements SYNOPSYS-AS-JP-AP Japan HUB and Data Center, JP
198.182.50.0/23 198.182.32.0/19
198.182.50.0/24 198.182.32.0/19
198.182.51.0/24 198.182.32.0/19
whois: 402332
IANA has recorded AS10209 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS10209\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS9249 - AS10239'
as-block: AS9249 - AS10239
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: 2022-09-22T22:36:45Z
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 'AS10209'
% Abuse contact for 'AS10209' is 'bent@synopsys.com'
aut-num: AS10209
as-name: Synopsys-AS-JP-AP
descr: Japan HUB and Data Center
descr: 1-28-1 Ooi, Shinagawa-ku Sumitomo Fudosan Ooimachi Ekimae Bl Tokyo
country: JP
import: from AS1 action pref=100; accept ANY
import: from AS1239 action pref=100; accept ANY
export: to AS1 announce AS10209
export: to AS1239 announce AS10209
default: to AS1 action pref=10; networks ANY
remarks: www.synopsys.com
org: ORG-SA28-AP
admin-c: BT217-AP
tech-c: BT217-AP
abuse-c: AS2372-AP
notify: network@synopsys.com
mnt-lower: MAINT-JP-SYNOPSYS
mnt-routes: MAINT-JP-SYNOPSYS
mnt-by: APNIC-HM
mnt-irt: IRT-SYNOPSYS-NON-JP
last-modified: 2020-06-22T15:54:35Z
source: APNIC
irt: IRT-SYNOPSYS-NON-JP
address: 700 E. Middlefield Road
address: Mountain View, CA 94043
e-mail: bent@synopsys.com
abuse-mailbox: bent@synopsys.com
admin-c: BT217-AP
tech-c: BT217-AP
auth: # Filtered
remarks: bent@synopsys.com was validated on 2026-02-10
mnt-by: MAINT-JP-SYNOPSYS
last-modified: 2026-02-10T14:55:20Z
source: APNIC
organisation: ORG-SA28-AP
org-name: Synopsys
org-type: LIR
country: JP
address: Futako Tamagawa Rise Office
address: 2-21-1 Tamagawa, Setagaya-ku
phone: +1-650-584-5000
e-mail: network-core@synopsys.com
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:14:55Z
source: APNIC
role: ABUSE SYNOPSYSNONJP
country: ZZ
address: 700 E. Middlefield Road
address: Mountain View, CA 94043
phone: +000000000
e-mail: bent@synopsys.com
admin-c: BT217-AP
tech-c: BT217-AP
nic-hdl: AS2372-AP
remarks: Generated from irt object IRT-SYNOPSYS-NON-JP
remarks: bent@synopsys.com was validated on 2026-02-10
abuse-mailbox: bent@synopsys.com
mnt-by: APNIC-ABUSE
last-modified: 2026-02-10T14:55:41Z
source: APNIC
person: BEN TSUI
nic-hdl: BT217-AP
e-mail: BENT@SYNOPSYS.COM
address: 700 E. Middlefield Road
address: Mountain View, CA 94043
phone: +1-650-584-4260
fax-no: +1-650-584-4343
country: US
mnt-by: MAINT-NEW
last-modified: 2008-09-04T07:49:55Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)