ASN Lookup Tool

Computer Network Information Center, Chinese Academy of Sciences cstnet.cn CN CN 645 Routes

AS Data

AS7497

AS7497 – Computer Network Information Center, Chinese Academy of Sciences

AS Number 7497
AS Name CSTNET-AS-AP
Organization Computer Network Information Center, Chinese Academy of Sciences (org-ca107-ap)
Country CN
Website cstnet.cn
Number of IPv4 Routes 467
Number of IPv6 Routes 178
ASN type EDUCATION
Registry APNIC
Date Allocated 1997-04-08

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Use ASN data for AS7497 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
2400:dd01:3014::/48 ~1×10²⁴
2400:dd01:1021::/48 ~1×10²⁴
210.76.212.0/22 1024
202.127.16.0/23 512
159.226.96.0/24 256
159.226.185.0/24 256
124.17.30.0/23 512
2400:dd01:102f::/48 ~1×10²⁴
2400:dd01:3006:8000::/49 ~604×10²¹
2400:dd02:1008::/48 ~1×10²⁴
119.78.254.0/24 256
159.226.155.0/24 256
124.16.149.0/24 256
2400:dd04:1004::/48 ~1×10²⁴
2400:dd01:100b::/48 ~1×10²⁴
124.16.154.0/24 256
210.75.225.0/24 256
159.226.161.0/24 256
49.210.0.0/15 131072
119.78.0.0/15 131072
119.78.160.0/22 1024
210.72.75.0/24 256
2400:dd0b:1002::/48 ~1×10²⁴
2400:dd01:1015::/48 ~1×10²⁴
119.78.218.0/24 256
210.72.8.0/24 256
2400:dd01:103b::/48 ~1×10²⁴
2400:dd01:2003::/48 ~1×10²⁴
2400:dd02:2000::/48 ~1×10²⁴
2400:dd01:3020::/48 ~1×10²⁴
2400:dd01:3008::/48 ~1×10²⁴
2400:dd02:2001::/48 ~1×10²⁴
202.127.22.0/24 256
210.72.154.0/23 512
210.77.77.0/24 256
119.78.4.0/23 512
210.72.74.0/24 256
124.16.190.0/24 256
223.193.16.0/22 1024
210.72.21.0/24 256
2400:dd01:3009::/48 ~1×10²⁴
159.226.125.0/24 256
2400:dd04:1003::/48 ~1×10²⁴
124.16.88.0/22 1024
2400:dd03:1006::/48 ~1×10²⁴
124.17.90.0/24 256
210.72.20.0/24 256
210.75.254.0/23 512
124.17.1.0/24 256
210.73.56.0/23 512
159.226.130.0/24 256
2400:dd01:1039::/48 ~1×10²⁴
159.226.40.0/23 512
2400:dd03:1005::/48 ~1×10²⁴
159.226.160.0/24 256
124.16.184.0/23 512
159.226.100.0/24 256
124.16.14.0/23 512
2400:dd01:2002::/48 ~1×10²⁴
210.77.16.0/21 2048

Raw Whois Response

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS7467 - AS7722'

as-block:       AS7467 - AS7722
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:        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 'AS7497'

% Abuse contact for 'AS7497' is 'abuse-ip@cstnet.cn'

aut-num:        AS7497
as-name:        CSTNET-AS-AP
descr:          Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
country:        CN
import:         from AS4538 accept <^AS4538>
import:         from AS4789 accept <^AS4789>
import:         from AS4837 accept <^AS4837>
import:         from AS4847 accept <^AS4847>
import:         from AS9306 accept <^AS9306>
import:         from AS9389 accept <^AS9389>
import:         from AS9394 accept <^AS9394>
import:         from AS9406 accept <^AS9406>
import:         from AS9800 accept <^AS9800>
import:         from AS9808 accept <^AS9808>
import:         from AS3320 accept ANY
import:         from AS3491 accept ANY
import:         from AS6453 accept ANY
import:         from AS10026 accept ANY
import:         from AS7497:AS-CUSTOMERS accept <^AS7497:AS-CUSTOMERS>
export:         to AS4538 announce <^AS7497>
export:         to AS4789 announce <^AS7497>
export:         to AS4837 announce <^AS7497>
export:         to AS4847 announce <^AS7497>
export:         to AS9306 announce <^AS7497>
export:         to AS9389 announce <^AS7497>
export:         to AS9394 announce <^AS7497>
export:         to AS9406 announce <^AS7497>
export:         to AS9800 announce <^AS7497>
export:         to AS9808 announce <^AS7497>
export:         to AS3320 announce <^AS7497>
export:         to AS3491 announce <^AS7497>
export:         to AS6453 announce <^AS7497>
export:         to AS10026 announce <^AS7497>
export:         to AS7497:AS-CUSTOMERS announce ANY
export:         to AS3320 announce <^AS7497:AS-CUSTOMERS>
export:         to AS3491 announce <^AS7497:AS-CUSTOMERS>
export:         to AS6453 announce <^AS7497:AS-CUSTOMERS>
export:         to AS10026 announce <^AS7497:AS-CUSTOMERS>
org:            ORG-CA107-AP
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
abuse-c:        AC2741-AP
mnt-lower:      MAINT-CSTNET-CN
mnt-routes:     MAINT-CSTNET-CN
mnt-by:         APNIC-HM
mnt-irt:        IRT-CSTNET-CN
last-modified:  2023-10-09T04:01:57Z
source:         APNIC

irt:            IRT-CSTNET-CN
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail:         abuse-ip@cstnet.cn
abuse-mailbox:  abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
auth:           # Filtered
remarks:        abuse-ip@cstnet.cn was validated on 2026-05-11
mnt-by:         MAINT-CSTNET-CN
last-modified:  2026-05-11T05:28:58Z
source:         APNIC

organisation:   ORG-CA107-AP
org-name:       CNIC-CAS
org-type:       LIR
country:        CN
address:        2 Dongsheng South Road, Haidian District
phone:          +86.10.58812266
e-mail:         support@cnic.cn
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:18:50Z
source:         APNIC

role:           ABUSE CSTNETCN
country:        ZZ
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
phone:          +000000000
e-mail:         abuse-ip@cstnet.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        AC2741-AP
remarks:        Generated from irt object IRT-CSTNET-CN
remarks:        abuse-ip@cstnet.cn was validated on 2026-05-11
abuse-mailbox:  abuse-ip@cstnet.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-05-11T05:29:17Z
source:         APNIC

role:           Computer Network Information Center of Chinese Academy of Sciences administrator
address:        2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
country:        CN
phone:          +86.10.58812266
e-mail:         supervise@cnic.cn
admin-c:        CNIC1-AP
tech-c:         CNIC1-AP
nic-hdl:        CNIC1-AP
mnt-by:         MAINT-CNICOCAOS-CN
last-modified:  2022-05-12T07:31:01Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-US2)

Parsed Whois Response

Peers

AS Number Description Country
AS24482 SG.GS SG
AS6453 TATA COMMUNICATIONS AMERICA INC US
AS23911 CNGI CERNET CN
AS9389 BEIJING SHENZHOU GREATWALL COMMUNICATION CN
AS24151 China Internet Network Infomation Center CN
AS3320 Deutsche Telekom AG DE
AS8359 MTS PJSC RU
AS6939 Hurricane Electric LLC US
AS10026 used for Atos INAC in Singapore ZZ
AS101 University of Washington US
AS4635 The Hong Kong Internet Exchange Limited HK
AS2907 Research Organization of Information and Systems, National Institute of Informatics JP
AS132337 AXCLUSIVE PTE. LTD. SG
AS140627 ONEQODE ASSETS PTY LTD AU
AS4789 Tsinghua University, Beijing CN
AS63555 Beijing Beilong Yunhai Network Data Technology Corporation CN
AS293 ESnet US
AS36236 NetActuate, Inc US
AS4837 CHINA UNICOM China169 Backbone CN
AS23855 SingAREN SG
AS3491 PCCW Global HK Limited HK
AS9394 China TieTong Telecommunications Corporation CN
AS1103 SURF B.V. NL
AS4134 CHINANET BACKBONE No.31,Jin rong Street CN
AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. CN
AS9729 iAdvantage Limited HK
AS7660 Asia Pacific Advanced Network Japan JP
AS9306 CIETNET - RongHua Road No.11, Beijing Economy Technology Development Area, 100176 CN
AS39120 Convergenze S.p.A. IT
AS20965 GEANT Vereniging NL
AS17579 KISTI KR
AS24409 China Internet Network Infomation Center CN
AS1239 Cogent Communications, LLC US
AS11537 Internet2 US
AS32590 Valve Corporation US
AS4538 Tsinghua University CN
AS9406 Room 224, Tsinghua University CN
AS9808 China Mobile Communications Group Co., Ltd CN
AS58717 Summit Communications Limited BD
AS4641 The Hong Kong Internet Exchange Limited HK
AS174 Cogent Communications, LLC US
AS9800 CHINA UNICOM CN
AS7575 Australian Academic and Research Network AU
AS4847 Connect to Sprint Link Intl and Global Sprint Link CN
AS49544 i3D.net B.V NL

Upstreams

AS Number Description Country
AS20965 GEANT Vereniging NL
AS23911 CNGI CERNET CN
AS11537 Internet2 US
AS8359 MTS PJSC RU
AS6939 Hurricane Electric LLC US
AS4635 The Hong Kong Internet Exchange Limited HK
AS9808 China Mobile Communications Group Co., Ltd CN
AS174 Cogent Communications, LLC US
AS2907 Research Organization of Information and Systems, National Institute of Informatics JP
AS7575 Australian Academic and Research Network AU
AS4837 CHINA UNICOM China169 Backbone CN
AS23855 SingAREN SG
AS3491 PCCW Global HK Limited HK
AS1103 SURF B.V. NL
AS4134 CHINANET BACKBONE No.31,Jin rong Street CN
AS7660 Asia Pacific Advanced Network Japan JP

Downstreams

AS Number Description Country
AS63555 Beijing Beilong Yunhai Network Data Technology Corporation CN
AS24151 China Internet Network Infomation Center CN
AS24409 China Internet Network Infomation Center CN
AS3491 PCCW Global HK Limited HK
AS4538 Tsinghua University CN
AS38345 Internet Domain Name System Beijing Engineering Resrarch Center Ltd. CN

Contacts

Email Contacts

supervise@cnic.cn

Abuse Contacts

abuse-ip@cstnet.cn

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Frequently Asked Questions

ASN AS7497 is an Autonomous System Number used to identify a network for BGP internet routing.
AS7497 is listed under Computer Network Information Center, Chinese Academy of Sciences.
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.