What is ASN AS133111?

ASN AS133111 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS133111?

AS133111 is listed under CERNET New Technology Co., Ltd..

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS133111 CERNET New Technology Co., Ltd.

CERNET New Technology Co., Ltd. cernet.com

CN 34 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	8
Number of IPv6 Routes	26
ASN type	EDUCATION
Registry	APNIC
Date Allocated	2013-10-08

ASN Intelligence API for production workflows

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

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IP Ranges

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:        PO Box 3646
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:  2026-08-26T00:40:00Z
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 2026-06-03
mnt-by:         MAINT-CNTCL-CN
last-modified:  2026-06-03T00:22:39Z
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 2026-06-03
abuse-mailbox:  yujj@cernet.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-06-03T00:23:03Z
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:  2026-09-02T06:56:03Z
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 1.88.48 (WHOIS-US2)

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.apnic.net",
  "as_blocks" : [ {
    "as_block" : "AS132096 - AS133119",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "HM20-AP" ],
    "tech_contacts" : [ "HM20-AP" ],
    "remarks" : [ "These AS numbers are further assigned by APNIC", "to APNIC members and end-users in the APNIC region" ],
    "mnt_by" : [ "APNIC-HM" ],
    "mnt_lower" : [ "APNIC-HM" ],
    "date_updated" : "2011-08-10",
    "source" : "APNIC"
  }, {
    "as_block" : "AS132096 - AS133119",
    "description" : [ "APNIC ASN block" ],
    "admin_contacts" : [ "IA55-AP" ],
    "tech_contacts" : [ "IH123-AP" ],
    "mnt_by" : [ "MNT-APJII-ID" ],
    "mnt_lower" : [ "MNT-APJII-ID" ],
    "date_updated" : "2026-09-02",
    "source" : "IDNIC"
  } ],
  "aut_nums" : [ {
    "aut_num" : "AS133111",
    "as_name" : "CNT-northChina",
    "description" : [ "CERNET New Technology Co., Ltd", "CERNET Tower, Tsinghua Science Park Building 8" ],
    "country" : "CN",
    "organization" : "ORG-CNTC5-AP",
    "sponsoring_organization" : "ORG-CNTC2-AP",
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "abuse_contacts" : [ "AC1576-AP" ],
    "mnt_irt" : [ "IRT-CNTCL-CN" ],
    "mnt_routes" : [ "MAINT-CNTCL-CN" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  } ],
  "irt" : {
    "handle" : "IRT-CNTCL-CN",
    "address" : [ "CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084" ],
    "zip_code" : "100084",
    "email" : [ "yujj@cernet.com" ],
    "abuse_mailbox" : [ "yujj@cernet.com" ],
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "remarks" : [ "yujj@cernet.com was validated on 2026-06-03" ],
    "mnt_by" : [ "MAINT-CNTCL-CN" ],
    "date_updated" : "2026-06-03",
    "source" : "APNIC"
  },
  "organization" : {
    "handle" : "ORG-CNTC5-AP",
    "name" : "CERNET New Technology Co., Ltd",
    "type" : "OTHER",
    "address" : [ "CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084" ],
    "zip_code" : "100084",
    "country" : [ "CN" ],
    "email" : [ "ningxy@cernet.com" ],
    "phone" : [ "+86-010-62603421" ],
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "mnt_ref" : [ "APNIC-HM" ],
    "mnt_by" : [ "APNIC-HM" ],
    "date_updated" : "2023-09-05",
    "source" : "APNIC"
  },
  "administrative_contacts" : [ {
    "handle" : "CNTC1-AP",
    "name" : "CERNET New Technology Co Ltd administrator",
    "address" : [ "CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084" ],
    "zip_code" : "100084",
    "country" : "CN",
    "email" : [ "ningxy@cernet.com" ],
    "phone" : [ "+86-010-62603421" ],
    "fax_no" : [ "+86-010-62603421" ],
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "mnt_by" : [ "MAINT-CNTCL-CN" ],
    "date_updated" : "2014-02-21",
    "source" : "APNIC"
  } ],
  "technical_contacts" : [ {
    "handle" : "CNTC1-AP",
    "name" : "CERNET New Technology Co Ltd administrator",
    "address" : [ "CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084" ],
    "zip_code" : "100084",
    "country" : "CN",
    "email" : [ "ningxy@cernet.com" ],
    "phone" : [ "+86-010-62603421" ],
    "fax_no" : [ "+86-010-62603421" ],
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "mnt_by" : [ "MAINT-CNTCL-CN" ],
    "date_updated" : "2014-02-21",
    "source" : "APNIC"
  } ],
  "abuse_contacts" : [ {
    "handle" : "AC1576-AP",
    "name" : "ABUSE CNTCLCN",
    "address" : [ "CERNET Tower, Tsinghua Science Park Building 8, Beijing Haidian District 100084" ],
    "zip_code" : "100084",
    "country" : "ZZ",
    "email" : [ "yujj@cernet.com" ],
    "abuse_mailbox" : [ "yujj@cernet.com" ],
    "phone" : [ "+000000000" ],
    "admin_contacts" : [ "CNTC1-AP" ],
    "tech_contacts" : [ "CNTC1-AP" ],
    "remarks" : [ "Generated from irt object IRT-CNTCL-CN", "yujj@cernet.com was validated on 2026-06-03" ],
    "mnt_by" : [ "APNIC-ABUSE" ],
    "date_updated" : "2026-06-03",
    "source" : "APNIC"
  } ]
}

Peers

AS Number	Description	Country
AS59078	Yunify Technologies Inc.	CN
AS59019	Beijing Kingsoft Cloud Internet Technology Co., Ltd	CN
AS45090	Shenzhen Tencent Computer Systems Company Limited	CN
AS4538	Tsinghua University	CN
AS37936	15F,Ideal Plaza No.58 Bei Si Huan Xi Road	CN
AS9808	China Mobile Communications Group Co., Ltd	CN
AS17428	21Vianet.Co.,Ltd	CN
AS23910	CNGI CERNET	CN
AS55990	Huawei Cloud Service data center	CN
AS17429	BEIJING GEHUA CATV NETWORK CO.LTD	CN
AS55641	Beijing CNISP Technology Co., Ltd.	CN

Upstreams

AS Number	Description	Country
AS4538	Tsinghua University	CN
AS9808	China Mobile Communications Group Co., Ltd	CN
AS23910	CNGI CERNET	CN

Downstreams

AS Number	Description	Country
AS37936	SINA - 15F,Ideal Plaza No.58 Bei Si Huan Xi Road	CN
AS59078	Yunify Technologies Inc.	CN
AS59019	Beijing Kingsoft Cloud Internet Technology Co., Ltd	CN
AS45090	Shenzhen Tencent Computer Systems Company Limited	CN
AS17428	21Vianet.Co.,Ltd	CN
AS55990	Huawei Cloud Service data center	CN
AS17429	BEIJING GEHUA CATV NETWORK CO.LTD	CN
AS55641	Beijing CNISP Technology Co., Ltd.	CN

Contacts

Email Contacts

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

Abuse Contacts

yujj@cernet.com

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