23911 CNGI-BJIX-AS-AP China Next Generation Internet Beijing IX, CN
Adjacency: 7 Upstream: 3 Downstream: 4
Upstream Adjacent AS list
AS4538 ERX-CERNET-BKB China Education and Research Network Center, CN
AS24489 TEIN2-NORTH-AP Trans-Eurasia Information Network TEIN2 - North, CN
AS7660 APAN-JP Asia Pacific Advanced Network - Japan, JP
Downstream Adjacent AS list
AS24489 TEIN2-NORTH-AP Trans-Eurasia Information Network TEIN2 - North, CN
AS38255 FITI-AS-AP China Education and Research Network CERNET, CN
AS9401 NLC-CN-AS National Library of China, CN
AS4538 ERX-CERNET-BKB China Education and Research Network Center, CN
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 48735 AS23911 ORG+TRN Originate: 512 /23.00 Transit: 22457344 /7.58 CNGI-BJIX-AS-AP China Next Generation Internet Beijing IX, 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 % 37126 AS23911 CNGI-BJIX-AS-AP China Next Generation Interne 2 0 0 2 0 0.00% Prefix AS Path Aggregation Suggestion 210.25.187.0/24 4777 2500 7660 23911 210.25.189.0/24 4777 2500 7660 23911
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS23911 2 More Specifics 2 Total Advertisements CNGI-BJIX-AS-AP China Next Generation Internet Beijing IX, CN
210.25.187.0/24 210.25.0.0/16
210.25.189.0/24 210.25.0.0/16
whois: 402332
IANA has recorded AS23911 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS23911\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 'AS23854 - AS23944'
as-block: AS23854 - AS23944
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 'AS23911'
% Abuse contact for 'AS23911' is 'abuse@cernet.edu.cn'
aut-num: AS23911
as-name: CNGI-BJIX-AS-AP
descr: China Next Generation Internet Beijing IX
descr: CNGI-CERNET
descr: Beijing 100084, China
country: CN
import: from AS4538 action pref=10; accept ANY
import: from AS4839 action pref=10; accept ANY
import: from AS4840 action pref=10; accept ANY
import: from AS9406 action pref=10; accept ANY
import: from AS9407 action pref=10; accept ANY
import: from AS6939 action pref=10; accept ANY
export: to AS9406 announce AS23911 AS4538 AS9407 AS4839 AS4840
export: to AS4538 announce AS23911 AS9406 AS9407 AS4839 AS4840
export: to AS9407 announce AS23911 AS4538 AS9406 AS4839 AS4840
export: to AS4840 announce AS23911 AS4538 AS9406 AS9407 AS4839
export: to AS4839 announce AS23911 AS4538 AS9406 AS9407 AS4840
default: to AS4538 action pref=10; networks ANY
mp-export: afi ipv6 to AS6939 announce AS23911:AS-CUSTOMERS-V6
remarks: Multihome portion of CERNET
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: 2020-09-03T09:16:07Z
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
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