ResearchRouting table, RPKI, IRR & looking glass

AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

AS37963 (ALIBABA-CN-NET) is registered to Hangzhou Alibaba Advertising Co.,Ltd. in CN, through APNIC. It originates 858 prefixes in the global routing table.

729
IPv4 prefixes
129
IPv6 prefixes
9,428,480
IPv4 addresses
99%
RPKI valid

Who holds AS37963

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS37963
Handle
ALIBABA-CN-NET
Organization
Hangzhou Alibaba Advertising Co.,Ltd.
Country
CN
Registry
APNIC
ASPA
None published
WHOIS recordAPNIC
% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS37888 - AS38911'

as-block:       AS37888 - AS38911
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:  2009-09-29T06:04:16Z
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 'AS37952 - AS37970'

as-block:       AS37952 - AS37970
descr:          CNNIC ASN block
country:        CN
remarks:        These AS numbers are further assigned by CNNIC
remarks:        to CNNIC members and end-users in China
admin-c:        IPAS1-AP
tech-c:         IPAS1-AP
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CNNIC-AP
last-modified:  2023-10-09T03:57:39Z
source:         APNIC

role:           CNNIC IPAS CONFEDERATION
address:        No.4, Zhongguancun No.4 South Street,
address:        Haidian District, Beijing
country:        CN
phone:          +86-010-58813000
fax-no:         +86-010-58813075
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        IPAS1-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2013-09-12T07:40:01Z
source:         APNIC

% Information related to 'AS37963'

% Abuse contact for 'AS37963' is 'didong.jc@alibaba-inc.com'

aut-num:        AS37963
as-name:        ALIBABA-CN-NET
descr:          Hangzhou Alibaba Advertising Co.,Ltd.
descr:          East Software Park, 99 Huaxing Rd.
descr:          Hangzhou, China
country:        CN
admin-c:        ZM678-AP
tech-c:         ZM877-AP
tech-c:         ZM876-AP
tech-c:         ZM875-AP
abuse-c:        AC1601-AP
mnt-routes:     MAINT-CNNIC-AP
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-ALIBABA-CN-NET-CN
last-modified:  2021-10-27T00:00:46Z
source:         APNIC

irt:            IRT-ALIBABA-CN-NET-CN
address:        No.699, Wangshang RD., Hangzhou, China
e-mail:         didong.jc@alibaba-inc.com
abuse-mailbox:  didong.jc@alibaba-inc.com
admin-c:        ZM678-AP
tech-c:         ZM678-AP
auth:           # Filtered
mnt-by:         MAINT-CNNIC-AP
last-modified:  2025-11-18T00:35:07Z
source:         APNIC

role:           ABUSE CNNICCN
country:        ZZ
address:        Beijing, China
phone:          +000000000
e-mail:         ipas@cnnic.cn
admin-c:        IP50-AP
tech-c:         IP50-AP
nic-hdl:        AC1601-AP
remarks:        Generated from irt object IRT-CNNIC-CN
remarks:        ipas@cnnic.cn is invalid
abuse-mailbox:  ipas@cnnic.cn
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-19T17:20:32Z
source:         APNIC

person:         Shuo Yu
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022600
e-mail:         anti-spam@list.alibaba-inc.com
nic-hdl:        ZM678-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2021-04-13T23:21:57Z
source:         APNIC

person:         Guoxin Gao
address:        5F, Builing D, the West Lake International Plaza of S&T
address:        No.391 Wen'er Road, Hangzhou City
address:        Zhejiang, China, 310099
country:        CN
phone:          +86-0571-85022600
fax-no:         +86-0571-85022600
e-mail:         anti-spam@list.alibaba-inc.com
nic-hdl:        ZM875-AP
mnt-by:         MAINT-CNNIC-AP
last-modified:  2014-07-30T01:56:01Z
source:         APNIC

person:         security trouble
e-mail:         abuse@alibaba-inc.com
address:        

What AS37963 announces

Prefixes originated by AS37963 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
729
IPv6 prefixes
129
IPv4 addresses
9,428,480 (36,830 /24s)
RPKI valid
855 99%
RPKI invalid
0
RPKI not found
3
ROAs naming AS37963
272
With an IRR route object
616 71%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (729)
8.128.4.0/228.128.4.0/238.128.6.0/238.128.32.0/198.128.32.0/208.128.48.0/208.128.64.0/208.128.64.0/218.128.72.0/218.128.80.0/208.128.80.0/218.128.88.0/218.128.96.0/218.128.96.0/228.128.100.0/228.128.104.0/218.128.104.0/228.128.108.0/228.129.0.0/168.129.0.0/178.129.128.0/178.130.0.0/158.130.0.0/168.131.0.0/168.132.0.0/158.132.0.0/168.132.105.0/248.132.106.0/248.132.107.0/248.133.0.0/168.134.0.0/168.134.0.0/178.134.128.0/178.134.240.0/218.134.240.0/238.134.242.0/238.134.244.0/238.134.246.0/238.135.0.0/168.135.0.0/178.135.128.0/178.136.0.0/168.136.0.0/178.136.128.0/178.137.0.0/168.137.0.0/178.137.128.0/178.137.133.0/248.137.134.0/248.137.135.0/248.138.0.0/168.138.0.0/178.138.69.0/248.138.70.0/248.138.71.0/248.138.128.0/178.139.0.0/168.139.0.0/178.139.128.0/178.140.0.0/148.140.0.0/158.141.192.0/228.141.200.0/218.142.0.0/158.144.0.0/148.144.0.0/158.144.0.0/168.145.0.0/168.146.0.0/158.146.0.0/168.146.0.0/178.146.128.0/178.147.0.0/178.147.0.0/188.147.64.0/188.147.128.0/178.147.128.0/188.147.192.0/188.148.0.0/198.148.0.0/208.148.16.0/208.148.64.0/198.148.64.0/208.148.80.0/208.148.96.0/198.148.96.0/208.148.112.0/208.148.128.0/178.148.128.0/188.148.169.0/248.148.192.0/188.149.0.0/168.149.0.0/178.149.128.0/178.150.0.0/228.150.0.0/238.150.2.0/238.150.4.0/228.150.4.0/238.150.6.0/238.150.8.0/218.150.8.0/228.150.12.0/228.150.16.0/228.150.16.0/238.150.18.0/238.150.20.0/228.150.20.0/238.150.22.0/238.150.24.0/218.150.24.0/228.150.28.0/228.150.32.0/218.150.32.0/228.150.36.0/228.150.64.0/238.150.64.0/248.150.65.0/248.152.0.0/168.152.0.0/17
Show 609 more
8.152.75.0/248.152.128.0/178.152.180.0/248.152.181.0/248.153.0.0/168.153.0.0/178.153.116.0/248.153.128.0/178.154.0.0/168.154.0.0/178.154.128.0/178.155.0.0/168.155.0.0/178.155.128.0/178.155.196.0/248.155.198.0/248.155.199.0/248.156.0.0/168.156.0.0/178.156.106.0/238.156.128.0/178.157.0.0/168.157.0.0/178.157.128.0/178.158.0.0/168.158.0.0/178.158.128.0/178.159.0.0/168.159.0.0/178.159.128.0/178.160.0.0/158.160.0.0/168.161.0.0/168.162.0.0/198.162.0.0/208.162.16.0/208.162.32.0/198.162.32.0/208.162.48.0/208.162.64.0/198.162.64.0/208.162.80.0/208.162.96.0/198.162.96.0/208.162.112.0/208.163.0.0/168.163.0.0/178.163.128.0/178.164.0.0/168.164.0.0/178.164.128.0/178.165.0.0/168.165.0.0/178.165.48.0/238.165.128.0/178.166.0.0/158.166.0.0/168.166.192.0/238.167.0.0/168.167.0.0/238.168.0.0/168.168.0.0/178.168.128.0/178.169.0.0/168.169.0.0/178.169.128.0/178.176.0.0/198.176.0.0/208.176.16.0/208.176.32.0/198.176.32.0/208.176.48.0/208.176.64.0/198.176.64.0/208.176.80.0/208.176.96.0/198.176.96.0/208.176.112.0/208.176.128.0/198.176.128.0/208.176.144.0/2039.96.0.0/1339.96.0.0/1439.100.0.0/1439.104.0.0/1439.104.0.0/1539.106.0.0/1539.108.0.0/1639.108.0.0/1739.108.128.0/1742.96.128.0/1742.96.128.0/1842.96.192.0/1842.96.239.0/2442.120.0.0/1642.120.0.0/1742.120.128.0/1742.120.248.0/2442.121.0.0/1642.121.0.0/1742.121.128.0/1742.156.128.0/1742.156.128.0/1842.156.192.0/1845.113.40.0/2245.113.40.0/2345.113.42.0/2347.92.0.0/1447.92.0.0/1547.94.0.0/1547.96.0.0/1447.96.0.0/1547.96.204.0/2447.98.0.0/1547.100.0.0/1447.100.0.0/1547.102.0.0/1547.104.0.0/1547.104.0.0/1647.105.0.0/1647.105.24.0/2347.106.0.0/1547.106.0.0/1647.107.0.0/1647.108.0.0/1547.108.0.0/1647.108.108.0/2447.109.0.0/1647.109.0.0/2347.110.0.0/1547.110.0.0/1647.111.0.0/1647.112.0.0/1547.112.0.0/1647.113.0.0/1647.114.0.0/1647.114.0.0/1747.114.16.0/2447.114.128.0/1747.115.0.0/1647.115.0.0/1747.115.128.0/1747.116.0.0/1647.116.0.0/1747.116.128.0/1747.117.0.0/1647.117.0.0/1747.117.128.0/1747.117.248.0/2147.118.0.0/1647.118.0.0/1747.118.128.0/1747.118.144.0/2047.118.160.0/2047.119.0.0/1647.119.0.0/1747.119.128.0/1747.120.0.0/1547.120.0.0/1647.121.0.0/1647.122.0.0/1947.122.0.0/2047.122.16.0/2047.122.32.0/1947.122.32.0/2047.122.48.0/2047.122.64.0/1947.122.64.0/2047.122.80.0/2047.122.96.0/1947.122.96.0/2047.122.112.0/2047.122.128.0/1947.122.128.0/2047.122.144.0/2047.122.160.0/1947.122.160.0/2047.122.176.0/2047.122.192.0/1947.122.192.0/2047.122.208.0/2047.122.224.0/1947.122.224.0/2047.122.240.0/2047.123.0.0/1647.123.0.0/1747.123.128.0/1759.82.0.0/2159.82.0.0/2259.82.2.0/2459.82.4.0/2259.82.8.0/2159.82.8.0/2259.82.12.0/2259.82.16.0/2059.82.16.0/2159.82.24.0/2159.82.32.0/2059.82.32.0/2159.82.40.0/2159.82.48.0/2159.82.48.0/2259.82.52.0/2259.82.56.0/2159.82.56.0/2259.82.60.0/2259.82.64.0/1959.82.64.0/2059.82.80.0/2059.82.96.0/2259.82.96.0/2359.82.98.0/2359.82.100.0/2259.82.100.0/2359.82.102.0/2359.82.104.0/2159.82.104.0/2259.82.108.0/2259.82.112.0/2059.82.112.0/2159.82.120.0/2159.82.124.0/2459.82.128.0/2159.82.128.0/2259.82.132.0/2259.82.136.0/2159.82.136.0/2359.82.144.0/2159.82.144.0/2259.82.148.0/2259.82.152.0/2159.82.152.0/2259.82.156.0/2259.110.0.0/1659.110.0.0/1759.110.128.0/1760.205.0.0/1660.205.0.0/1760.205.128.0/1760.205.133.0/24101.37.0.0/16101.37.0.0/17101.37.128.0/17101.132.0.0/15101.132.0.0/16101.133.0.0/16101.133.201.0/24101.200.0.0/15101.200.0.0/16101.201.0.0/16103.52.196.0/22103.52.196.0/23103.52.198.0/23106.11.0.0/16106.11.0.0/19106.11.1.0/24106.11.24.0/24106.11.32.0/22106.11.36.0/22106.11.40.0/21106.11.48.0/21106.11.56.0/21106.11.64.0/19106.11.96.0/21106.11.96.0/22106.11.100.0/22106.11.128.0/20106.11.144.0/20106.11.160.0/20106.11.176.0/21106.11.184.0/21106.11.192.0/23106.11.194.0/23106.11.196.0/23106.11.198.0/24106.11.199.0/24106.11.200.0/24106.11.201.0/24106.11.202.0/23106.11.204.0/22106.11.208.0/21106.11.216.0/21106.11.224.0/19106.11.235.0/24106.14.0.0/15106.14.0.0/16106.15.0.0/16110.75.0.0/16110.75.0.0/17110.75.128.0/17110.75.128.0/19110.75.138.0/23110.75.160.0/19110.75.192.0/19110.75.224.0/19110.75.227.0/24110.75.228.0/23110.75.230.0/24110.75.233.0/24110.75.235.0/24110.75.236.0/22110.75.240.0/20110.76.0.0/19110.76.0.0/20110.76.0.0/24110.76.2.0/23110.76.2.0/24110.76.3.0/24110.76.4.0/23110.76.4.0/24110.76.5.0/24110.76.6.0/24110.76.7.0/24110.76.8.0/22110.76.8.0/23110.76.10.0/23110.76.12.0/23110.76.12.0/24110.76.13.0/24110.76.15.0/24110.76.16.0/20110.76.16.0/24110.76.17.0/24110.76.19.0/24110.76.20.0/24110.76.22.0/24110.76.24.0/24110.76.26.0/24110.76.27.0/24110.76.30.0/23110.76.32.0/20110.76.48.0/20110.76.56.0/22110.76.60.0/22110.173.192.0/19110.173.192.0/20110.173.196.0/24110.173.208.0/20112.74.0.0/16112.74.0.0/17112.74.128.0/17112.124.0.0/14112.124.0.0/16112.124.0.0/17112.124.128.0/17112.124.209.0/24112.125.0.0/16112.126.0.0/16112.126.0.0/17112.126.128.0/17112.127.0.0/16112.127.0.0/17112.127.128.0/17114.55.0.0/16114.55.0.0/17114.55.128.0/17114.215.0.0/16114.215.0.0/18114.215.64.0/18114.215.96.0/19114.215.128.0/19114.215.160.0/21114.215.164.0/22114.215.220.0/22115.28.0.0/16115.28.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IPv6 (129)
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RPKI valid   RPKI invalid   no ROA covers it

Who AS37963 is reached through

The AS just before AS37963 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.