133111 CNT-NORTHCHINA CERNET New Technology Co., Ltd, CN
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS9808 CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
AS4538 ERX-CERNET-BKB China Education and Research Network Center, CN
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 5839 AS133111 ORIGIN Originate: 27392 /17.26 Transit: 0 /0.00 CNT-NORTHCHINA CERNET New Technology Co., Ltd, 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 % 24842 AS133111 CNT-NORTHCHINA CERNET New Technology Co., Ltd 8 1 0 7 1 12.50% Prefix AS Path Aggregation Suggestion 42.201.32.0/19 4777 2497 4837 9808 133111 42.201.33.0/24 4777 2497 6453 4538 133111 42.201.60.0/23 4777 2497 6453 4538 133111 42.201.62.0/23 4777 2497 4837 9808 133111 - Withdrawn - matching aggregate 42.201.32.0/19 4777 2497 4837 9808 133111 42.245.192.0/18 4777 2497 4837 9808 133111 42.245.221.0/24 4777 2497 174 4538 4538 4538 133111 43.252.48.0/24 4777 2497 4837 9808 133111 103.81.200.0/22 4777 2497 4837 9808 133111
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS133111 6 More Specifics 8 Total Advertisements CNT-NORTHCHINA CERNET New Technology Co., Ltd, CN
42.201.33.0/24 42.201.32.0/19
42.201.60.0/23 42.201.32.0/19
42.201.62.0/23 42.201.32.0/19
42.245.192.0/18 42.244.0.0/14
42.245.221.0/24 42.244.0.0/14
43.252.48.0/24 43.252.48.0/22
whois: 402332
IANA has recorded AS133111 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS133111\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS132096 - AS133119'
as-block: AS132096 - AS133119
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: 2011-08-10T06:21:42Z
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 'AS133111'
% Abuse contact for 'AS133111' is 'yujj@cernet.com'
aut-num: AS133111
as-name: CNT-northChina
descr: CERNET New Technology Co., Ltd
descr: CERNET Tower, Tsinghua Science Park Building 8
country: CN
org: ORG-CNTC5-AP
sponsoring-org: ORG-CNTC2-AP
admin-c: CNTC1-AP
tech-c: CNTC1-AP
abuse-c: AC1576-AP
mnt-routes: MAINT-CNTCL-CN
mnt-by: APNIC-HM
mnt-irt: IRT-CNTCL-CN
last-modified: 2023-09-05T03:51:15Z
source: APNIC
irt: IRT-CNTCL-CN
address: CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084
e-mail: yujj@cernet.com
abuse-mailbox: yujj@cernet.com
admin-c: CNTC1-AP
tech-c: CNTC1-AP
auth: # Filtered
remarks: yujj@cernet.com was validated on 2025-12-02
mnt-by: MAINT-CNTCL-CN
last-modified: 2025-12-02T03:44:57Z
source: APNIC
organisation: ORG-CNTC5-AP
org-name: CERNET New Technology Co., Ltd
org-type: OTHER
address: CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084
country: CN
phone: +86-010-62603421
e-mail: ningxy@cernet.com
admin-c: CNTC1-AP
tech-c: CNTC1-AP
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T03:51:14Z
source: APNIC
role: ABUSE CNTCLCN
country: ZZ
address: CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084
phone: +000000000
e-mail: yujj@cernet.com
admin-c: CNTC1-AP
tech-c: CNTC1-AP
nic-hdl: AC1576-AP
remarks: Generated from irt object IRT-CNTCL-CN
remarks: yujj@cernet.com was validated on 2025-12-02
abuse-mailbox: yujj@cernet.com
mnt-by: APNIC-ABUSE
last-modified: 2025-12-02T03:45:17Z
source: APNIC
role: CERNET New Technology Co Ltd administrator
address: CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084
country: CN
phone: +86-010-62603421
fax-no: +86-010-62603421
e-mail: ningxy@cernet.com
admin-c: CNTC1-AP
tech-c: CNTC1-AP
nic-hdl: CNTC1-AP
mnt-by: MAINT-CNTCL-CN
last-modified: 2014-02-21T00:01:49Z
source: APNIC
% Information related to 'AS132096 - AS133119'
as-block: AS132096 - AS133119
descr: APNIC ASN block
admin-c: IA55-AP
tech-c: IH123-AP
mnt-by: MNT-APJII-ID
mnt-lower: MNT-APJII-ID
last-modified: 2026-02-25T02:44:01Z
source: IDNIC
role: ID-NIC ADMINISTRATORS
address: Indonesian Network Information Center
address: ID-NIC
address: Cyber Building 11th Floor
address: Jakarta 12710
country: ID
phone: +62-21-52960634
fax-no: +62-21-52960635
e-mail: hostmaster@idnic.net
admin-c: IH288-AP
tech-c: IH288-AP
nic-hdl: IA55-AP
notify: hostmaster@idnic.net
mnt-by: MNT-APJII-ID
last-modified: 2026-02-25T04:06:45Z
source: IDNIC
role: ID-NIC HOSTMASTERS
address: Indonesian Network Information Center
address: ID-NIC
address: Cyber Building 11th Floor
address: Jakarta 12710
country: ID
phone: +62-21-52960634
fax-no: +62-21-52960635
e-mail: hostmaster@idnic.net
remarks: spam and abuse report : abuse@apjii.or.id
remarks: technical and routing : support@apjii.or.id
remarks: administrative request : admin@apjii.or.id
remarks: IDNIC hostmasters role object
admin-c: IH1-AP
tech-c: IH1-AP
nic-hdl: IH123-AP
notify: hostmaster@idnic.net
mnt-by: MNT-APJII-ID
last-modified: 2024-07-10T05:48:59Z
source: IDNIC
% This query was served by the APNIC Whois Service version 1.88.47 (WHOIS-AU4)