ResearchRouting table, RPKI, IRR & looking glass

AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.

AS38365 (Baidu) is registered to Beijing Baidu Netcom Science and Technology Co., Ltd. in CN, through APNIC. It originates 130 prefixes in the global routing table.

119
IPv4 prefixes
11
IPv6 prefixes
345,088
IPv4 addresses
100%
RPKI valid

Who holds AS38365

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

AS number
AS38365
Handle
Baidu
Organization
Beijing Baidu Netcom Science and Technology 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 'AS38335 - AS38384'

as-block:       AS38335  - AS38384
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:  2008-09-04T06:40:26Z
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 'AS38365'

% Abuse contact for 'AS38365' is 'huxin05@baidu.com'

aut-num:        AS38365
as-name:        Baidu
descr:          Beijing Baidu Netcom Science and Technology Co., Ltd.
descr:          Baidu Plaza, No.10, Shangdi 10th street,
descr:          Haidian District Beijing,100080
country:        CN
admin-c:        SD753-AP
tech-c:         SD753-AP
abuse-c:        AC1601-AP
mnt-lower:      MAINT-CNNIC-AP
mnt-routes:     MAINT-CNNIC-AP
mnt-by:         MAINT-CNNIC-AP
mnt-irt:        IRT-BAIDU-CN
last-modified:  2023-11-28T00:58:31Z
source:         APNIC

irt:            IRT-BAIDU-CN
address:        12f,lixiang building ,zhongguancun,beijing
e-mail:         huxin05@baidu.com
abuse-mailbox:  huxin05@baidu.com
admin-c:        ZKY3-AP
tech-c:         ZKY3-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:         Supeng Deng
nic-hdl:        SD753-AP
address:        No.6 2nd North Street Haidian District Beijing
country:        CN
phone:          +86- 18610728882
fax-no:         +86-10-58003402
e-mail:         gaofeng04@baidu.com
mnt-by:         MAINT-CNNIC-AP
last-modified:  2022-03-10T03:20:04Z
source:         APNIC

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


What AS38365 announces

Prefixes originated by AS38365 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
119
IPv6 prefixes
11
IPv4 addresses
345,088 (1,348 /24s)
RPKI valid
130 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS38365
73
With an IRR route object
65 50%

Announced prefixes

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

IPv4 (119)
42.199.240.0/22106.12.0.0/18106.12.0.0/19106.12.32.0/19106.12.64.0/18106.12.64.0/20106.12.80.0/20106.12.96.0/20106.12.112.0/20106.12.128.0/18106.12.128.0/20106.12.144.0/20106.12.160.0/20106.12.176.0/20106.12.192.0/19106.12.192.0/20106.12.208.0/20106.12.224.0/20106.12.224.0/21106.12.232.0/21106.12.240.0/21106.12.240.0/23106.13.0.0/18106.13.0.0/19106.13.32.0/20106.13.48.0/20106.13.64.0/18106.13.64.0/19106.13.96.0/19106.13.128.0/18106.13.128.0/19106.13.160.0/19106.13.192.0/19106.13.192.0/20106.13.208.0/20106.13.224.0/20106.13.224.0/21106.13.232.0/21106.13.240.0/22119.75.208.0/20119.75.216.0/24119.75.222.0/24120.48.0.0/18120.48.0.0/19120.48.32.0/19120.48.64.0/18120.48.64.0/19120.48.96.0/19120.48.128.0/18120.48.128.0/19120.48.160.0/19120.48.192.0/18120.48.192.0/20120.48.208.0/20120.48.224.0/20120.48.240.0/21120.48.248.0/21120.49.0.0/18120.49.64.0/18120.49.64.0/19120.49.192.0/18180.76.16.0/20180.76.32.0/20180.76.36.0/22180.76.46.0/23180.76.48.0/20180.76.48.0/23180.76.50.0/23180.76.52.0/22180.76.56.0/21180.76.64.0/18180.76.64.0/21180.76.72.0/22180.76.76.0/24180.76.96.0/20180.76.112.0/21180.76.120.0/23180.76.124.0/23180.76.126.0/23180.76.128.0/18180.76.128.0/19180.76.160.0/19180.76.192.0/22180.76.192.0/23180.76.194.0/23180.76.196.0/23180.76.200.0/21180.76.200.0/23180.76.202.0/23180.76.204.0/22180.76.208.0/20180.76.208.0/23180.76.220.0/22180.76.220.0/23180.76.222.0/23180.76.224.0/19180.76.224.0/20180.76.240.0/20182.61.0.0/18182.61.0.0/19182.61.32.0/19182.61.130.0/23182.61.130.0/24182.61.131.0/24182.61.132.0/22182.61.132.0/23182.61.134.0/23182.61.136.0/21182.61.136.0/22182.61.140.0/22182.61.144.0/20182.61.144.0/21182.61.200.0/21182.61.200.0/22182.61.208.0/21182.61.216.0/21182.61.223.0/24182.61.224.0/19182.61.247.0/24
IPv6 (11)

RPKI valid   RPKI invalid   no ROA covers it

Who AS38365 is reached through

The AS just before AS38365 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.

Sourceas-nameMaintained by
APNICBaiduMAINT-CNNIC-AP
RADBBaiduMAINT-AS55967

Route objects with origin AS38365: APNIC 246 · RADB 237

as-sets that list AS38365 (10)