138371 CNGI-QDA-IX-AS-AP - CERNET2 regional IX at Ocean University of China, CN
Adjacency: 3 Upstream: 1 Downstream: 2
Upstream Adjacent AS list
AS4538 ERX-CERNET-BKB - China Education and Research Network Center, CN
Downstream Adjacent AS list
AS141005 SDEPN-AS-CN - Shandong Provincial Department of Education,CNN
AS132553 UPC-AS-CN - China University of Petroleum (East China), CN
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 46018 AS138371 ORIGIN Originate: 768 /22.42 Transit: 0 /0.00 CNGI-QDA-IX-AS-AP - CERNET2 regional IX at Ocean University of China, 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 % 25173 AS138371 CNGI-QDA-IX-AS-AP - CERNET2 regional IX at Oc 3 2 1 2 1 33.33% Prefix AS Path Aggregation Suggestion 121.251.232.0/23 4777 2500 7660 23911 4538 138371 + Announce - aggregate of 121.251.232.0/24 (4777 2500 7660 23911 4538 138371) and 121.251.233.0/24 (4777 2500 7660 23911 4538 138371) 121.251.232.0/24 4777 2500 7660 23911 4538 138371 - Withdrawn - aggregated with 121.251.233.0/24 (4777 2500 7660 23911 4538 138371) 121.251.233.0/24 4777 2500 7660 23911 4538 138371 - Withdrawn - aggregated with 121.251.232.0/24 (4777 2500 7660 23911 4538 138371) 121.251.234.0/24 4777 2500 7660 23911 4538 138371
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS138371 3 More Specifics 3 Total Advertisements CNGI-QDA-IX-AS-AP - CERNET2 regional IX at Ocean University of China, CN
121.251.232.0/24 121.248.0.0/14
121.251.233.0/24 121.248.0.0/14
121.251.234.0/24 121.248.0.0/14
whois: 402638
IANA has recorded AS138371 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS138371\n % [whois.apnic.net]
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% Information related to 'AS137530 - AS138553'
as-block: AS137530 - AS138553
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: 2017-12-08T06:45:58Z
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 'AS138371'
% Abuse contact for 'AS138371' is 'abuse@cernet.edu.cn'
aut-num: AS138371
as-name: CNGI-QDA-IX-AS-AP
descr: CERNET2 regional IX at Ocean University of China
descr: CERNET Center
descr: Beijing 100084, China
country: CN
org: ORG-CEAR1-AP
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: 2020-09-03T09:16:08Z
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: 2026-05-25T09:07:47Z
source: APNIC
organisation: ORG-CEAR1-AP
org-name: China Education and Research Network (CERNET)
country: CN
address: FIT 3-220,
address: Tsinghua University
phone: +86-10-62785983
fax-no: +86-10-62785933
e-mail: hostmaster@cernic.net
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2018-09-13T12:56:34Z
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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