38345 ZDNS Internet Domain Name System Beijing Engineering Resrarch Center Ltd., CN
Adjacency: 3 Upstream: 3 Downstream: 0
Upstream Adjacent AS list
AS174 COGENT-174 - Cogent Communications, LLC, US
AS4641 HKIX-AS-AP The Hong Kong Internet Exchange Limited, HK
AS7497 CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS, CN
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 13771 AS38345 ORIGIN Originate: 6144 /19.42 Transit: 0 /0.00 ZDNS Internet Domain Name System Beijing Engineering Resrarch Center Ltd., CN
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 4968 AS38345 ZDNS Internet Domain Name System Beijing Engi 24 16 6 14 10 41.67% Prefix AS Path Aggregation Suggestion 1.8.1.0/24 4777 2516 3491 7497 38345 1.8.8.0/24 4777 2516 3491 7497 38345 150.242.156.0/23 4777 2497 174 38345 + Announce - aggregate of 150.242.156.0/24 (4777 2497 174 38345) and 150.242.157.0/24 (4777 2497 174 38345) 150.242.156.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 150.242.157.0/24 (4777 2497 174 38345) 150.242.157.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 150.242.156.0/24 (4777 2497 174 38345) 202.173.8.0/22 4777 2516 3491 7497 38345 + Announce - aggregate of 202.173.8.0/23 (4777 2516 3491 7497 38345) and 202.173.10.0/23 (4777 2516 3491 7497 38345) 202.173.8.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.9.0/24 (4777 2516 3491 7497 38345) 202.173.9.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.8.0/24 (4777 2516 3491 7497 38345) 202.173.10.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.11.0/24 (4777 2516 3491 7497 38345) 202.173.11.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.10.0/24 (4777 2516 3491 7497 38345) 202.173.14.0/23 4777 2516 3491 7497 38345 + Announce - aggregate of 202.173.14.0/24 (4777 2516 3491 7497 38345) and 202.173.15.0/24 (4777 2516 3491 7497 38345) 202.173.14.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.15.0/24 (4777 2516 3491 7497 38345) 202.173.15.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 202.173.14.0/24 (4777 2516 3491 7497 38345) 203.99.20.0/24 4777 2497 6453 4641 38345 203.99.21.0/24 4777 2497 174 38345 203.99.22.0/23 4777 2497 174 38345 + Announce - aggregate of 203.99.22.0/24 (4777 2497 174 38345) and 203.99.23.0/24 (4777 2497 174 38345) 203.99.22.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.23.0/24 (4777 2497 174 38345) 203.99.23.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.22.0/24 (4777 2497 174 38345) 203.99.24.0/22 4777 2497 174 38345 + Announce - aggregate of 203.99.24.0/23 (4777 2497 174 38345) and 203.99.26.0/23 (4777 2497 174 38345) 203.99.24.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.25.0/24 (4777 2497 174 38345) 203.99.25.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.24.0/24 (4777 2497 174 38345) 203.99.26.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.27.0/24 (4777 2497 174 38345) 203.99.27.0/24 4777 2497 174 38345 - Withdrawn - aggregated with 203.99.26.0/24 (4777 2497 174 38345) 203.99.28.0/24 4777 2497 174 38345 203.99.29.0/24 4777 2497 6453 4641 38345 203.99.30.0/23 4777 2516 3491 7497 38345 + Announce - aggregate of 203.99.30.0/24 (4777 2516 3491 7497 38345) and 203.99.31.0/24 (4777 2516 3491 7497 38345) 203.99.30.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 203.99.31.0/24 (4777 2516 3491 7497 38345) 203.99.31.0/24 4777 2516 3491 7497 38345 - Withdrawn - aggregated with 203.99.30.0/24 (4777 2516 3491 7497 38345) 203.119.80.0/24 4777 2516 3491 7497 38345 203.119.83.0/24 4777 2516 3491 7497 38345
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS38345 24 More Specifics 24 Total Advertisements ZDNS Internet Domain Name System Beijing Engineering Resrarch Center Ltd., CN
1.8.1.0/24 1.8.0.0/16
1.8.8.0/24 1.8.0.0/16
150.242.156.0/24 150.242.156.0/22
150.242.157.0/24 150.242.156.0/22
202.173.8.0/24 202.173.8.0/21
202.173.9.0/24 202.173.8.0/21
202.173.10.0/24 202.173.8.0/21
202.173.11.0/24 202.173.8.0/21
202.173.14.0/24 202.173.8.0/21
202.173.15.0/24 202.173.8.0/21
203.99.20.0/24 203.99.16.0/20
203.99.21.0/24 203.99.16.0/20
203.99.22.0/24 203.99.16.0/20
203.99.23.0/24 203.99.16.0/20
203.99.24.0/24 203.99.16.0/20
203.99.25.0/24 203.99.16.0/20
203.99.26.0/24 203.99.16.0/20
203.99.27.0/24 203.99.16.0/20
203.99.28.0/24 203.99.16.0/20
203.99.29.0/24 203.99.16.0/20
203.99.30.0/24 203.99.16.0/20
203.99.31.0/24 203.99.16.0/20
203.119.80.0/24 203.119.80.0/22
203.119.83.0/24 203.119.80.0/22
whois: 402332
IANA has recorded AS38345 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS38345\n % [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: 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 '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 'AS38345'
% Abuse contact for 'AS38345' is 'xingzhijie@knet.cn'
aut-num: AS38345
as-name: ZDNS
descr: Internet Domain Name System Beijing Engineering Resrarch Center Ltd.
descr: 4,South 4th treet, Zhongguancun,Haidian District,Beijing
country: CN
import: from AS4538 action pref=100; accept ANY
import: from AS4641 action pref=100; accept ANY
import: from AS4635 action pref=100; accept ANY
import: from AS7497 action pref=100; accept ANY
import: from AS6939 action pref=100; accept ANY
export: to AS4538 announce AS38345
export: to AS4641 announce AS38345
export: to AS4635 announce AS38345
export: to AS7497 announce AS38345
export: to AS6939 announce AS38345
admin-c: XZ4638-AP
tech-c: WL1818-AP
abuse-c: AC1601-AP
mnt-lower: MAINT-CNNIC-AP
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-ZDNS-CN
last-modified: 2023-11-28T00:58:31Z
source: APNIC
irt: IRT-ZDNS-CN
address: 4,South 4th street, Zhongguancun, Haidian District,Beijing
e-mail: xingzhijie@knet.cn
abuse-mailbox: xingzhijie@knet.cn
admin-c: XZ4638-AP
tech-c: XZ4638-AP
auth: # Filtered
mnt-by: MAINT-CNNIC-AP
last-modified: 2025-11-18T00:35:10Z
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: Wenzhe Lu
address: 4,South 4th treet, Zhongguancun,Haidian District,Beijing
country: CN
phone: +86-010-58813017
fax-no: +86-010-58812666-126
e-mail: lwz@knet.cn
nic-hdl: WL1818-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2011-03-16T03:32:02Z
source: APNIC
person: Xing Zhijie
address: 4,South 4th street, Zhongguancun, Haidian District,Beijing
country: CN
phone: +86-010-58813342
e-mail: xingzhijie@knet.cn
nic-hdl: XZ4638-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2016-09-20T06:04:01Z
source: APNIC
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