24490 TEIN2-SG-AP Trans-Eurasia Information Network TEIN2 - SG, CN
Adjacency: 12 Upstream: 4 Downstream: 8
Upstream Adjacent AS list
AS7575 AARNET-AS-AP Australian Academic and Research Network AARNet, AU
AS23855 SINGAREN-GIX-AS-AP Singapore Advanced Research and Education Network, SG
AS24287 TEIN2-JP National Institute of Informatics, JP
AS7660 APAN-JP Asia Pacific Advanced Network - Japan, JP
Downstream Adjacent AS list
AS141682 AIPL-AS-AP APIDT Infrastructure Pty Ltd, AU
AS24287 TEIN2-JP National Institute of Informatics, JP
AS9264 ASNET Academia Sinica, TW
AS24489 TEIN2-NORTH-AP Trans-Eurasia Information Network TEIN2 - North, CN
AS9270 APAN-KR-AS National Infomation Society Agency, KR
AS23855 SINGAREN-GIX-AS-AP Singapore Advanced Research and Education Network, SG
AS63961 BDREN-UGC-AS-AP Bangladesh Research and Education Network BdREN, BD
AS7575 AARNET-AS-AP Australian Academic and Research Network AARNet, AU
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 24470 AS24490 ORG+TRN Originate: 2048 /21.00 Transit: 63744 /16.04 TEIN2-SG-AP Trans-Eurasia Information Network TEIN2 - SG, CN
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 % 36372 AS24490 TEIN2-SG-AP Trans-Eurasia Information Network 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 202.179.248.0/21 4608 7575 24490
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS24490 1 More Specifics 1 Total Advertisements TEIN2-SG-AP Trans-Eurasia Information Network TEIN2 - SG, CN
202.179.248.0/21 202.179.240.0/20
whois: 402332
IANA has recorded AS24490 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS24490\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
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 'AS24431 - AS24517'
as-block: AS24431 - AS24517
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: 2008-09-04T06:40:26Z
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 'AS24490'
% Abuse contact for 'AS24490' is 'abuse@cernet.edu.cn'
aut-num: AS24490
as-name: TEIN2-SG-AP
descr: Trans-Eurasia Information Network (TEIN2) - SG
descr: China Education and Research Network Center
descr: Tsinghua University, Beijing 100084, China
country: CN
import: from AS20965 action pref=10; accept ANY
import: from AS7660 action pref=10; accept ANY
import: from AS9270 action pref=10; accept ANY
export: to AS20965 announce AS24490
export: to AS7660 announce AS24490
export: to AS9270 announce AS24490
default: to AS20965 action pref=10; networks ANY
admin-c: CER-AP
tech-c: CER-AP
abuse-c: AC1685-AP
mnt-lower: MAINT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-by: APNIC-HM
mnt-irt: IRT-CERNET-AP
last-modified: 2020-09-03T09:16:20Z
source: APNIC
irt: IRT-CERNET-AP
address: Network Center,
address: FIT-3-220, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
fax-no: +86-10-62785933
e-mail: abuse@cernet.edu.cn
abuse-mailbox: abuse@cernet.edu.cn
admin-c: CER-AP
tech-c: CER-AP
auth: # Filtered
remarks: timezone GMT+8
remarks: abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by: MAINT-CERNET-AP
last-modified: 2026-03-05T06:39:56Z
source: APNIC
role: ABUSE CERNETAP
country: ZZ
address: Network Center,
address: FIT-3-220, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
e-mail: abuse@cernet.edu.cn
admin-c: CER-AP
tech-c: CER-AP
nic-hdl: AC1685-AP
remarks: Generated from irt object IRT-CERNET-AP
remarks: abuse@cernet.edu.cn was validated on 2026-03-05
abuse-mailbox: abuse@cernet.edu.cn
mnt-by: APNIC-ABUSE
last-modified: 2026-03-05T06:40:20Z
source: APNIC
role: CERNET Helpdesk
address: CERNET Center
address: Beijing 100084, China
country: CN
phone: +86-10-6278-4049
fax-no: +86-10-6278-5933
e-mail: helpdesk@cernet.edu.cn
remarks: abuse@cernet.edu.cn
admin-c: XL1-CN
tech-c: SZ2-AP
nic-hdl: CER-AP
mnt-by: MAINT-CERNET-AP
last-modified: 2020-09-03T09:14:12Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)