ASN Lookup Tool

CERNET New Technology Co., Ltd cernet.com CN CN 10 Routes

AS Data

AS133111

AS133111 – CERNET New Technology Co., Ltd

AS Number 133111
AS Name CNT-northChina
Organization CERNET New Technology Co., Ltd(org-cntc5-ap)
Country CN
Website cernet.com
Number of IPv4 Routes 7
Number of IPv6 Routes 3
ASN type BUSINESS
Registry APNIC
Date Allocated N/A

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Use ASN data for AS133111 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
103.81.200.0/22 1024
42.201.62.0/23 512
240d:4000::/21 ~162×10³⁰
43.252.48.0/24 256
42.201.33.0/24 256
42.201.60.0/23 512
2400:a980::/29 ~634×10²⁷
2403:a200:9999::/48 ~1×10²⁴
42.245.221.0/24 256
42.201.32.0/19 8192

Raw Whois Response

% [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 1.88.34 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd CN
AS9808 China Mobile CN
AS59073 Bank of China Limited CN
AS4538 China Education and Research Network Center CN
AS4538 Tsinghua University CN
AS23910 CNGI CERNET CN
AS55990 Huawei Cloud Service data center CN
AS17429 BEIJING GEHUA CATV NETWORK CO.LTD CN
AS24150 SCN 1 TianXianQiao BinHe Road,Chengdu,SiChuan AU
AS59078 Yunify Technologies Inc. CN

Upstreams

AS Number Description Country
AS9808 China Mobile CN
AS4538 Tsinghua University CN
AS23910 CNGI CERNET CN

Downstreams

AS Number Description Country
AS24150 SCN 1 TianXianQiao BinHe Road,Chengdu,SiChuan AU
AS59078 Yunify Technologies Inc. CN
AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd CN
AS45090 Shenzhen Tencent Computer Systems Company Limited CN
AS59073 Bank of China Limited CN
AS131137 Inspur Software Group Co., Ltd. CN
AS17428 21Vianet.Co.,Ltd CN
AS37936 SINA 15F,Ideal Plaza No.58 Bei Si Huan Xi Road AU
AS55990 Huawei Cloud Service data center CN
AS17429 BEIJING GEHUA CATV NETWORK CO.LTD CN

Contacts

Email Contacts

hostmaster@idnic.net ningxy@cernet.com yujj@cernet.com

Abuse Contacts

yujj@cernet.com

Legacy Routes

42.245.192.0/18

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Frequently Asked Questions

ASN AS133111 is an Autonomous System Number used to identify a network for BGP internet routing.
AS133111 is listed under CERNET New Technology Co., Ltd.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.