58542 CHINATELECOM-TIANJIN Tianjij,300000, CN
Adjacency: 4 Upstream: 1 Downstream: 3
Upstream Adjacent AS list
AS4134 CHINANET-BACKBONE No.31,Jin-rong Street, CN
Downstream Adjacent AS list
AS59019 BJKSCNET Beijing Kingsoft Cloud Internet Technology Co., Ltd, CN
AS45090 TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN
AS137718 VOLCANO-ENGINE Beijing Volcano Engine Technology Co., Ltd., CN
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 2130 AS58542 ORG+TRN Originate: 115968 /15.18 Transit: 549632 /12.93 CHINATELECOM-TIANJIN Tianjij,300000, 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 % 2962 AS58542 CHINATELECOM-TIANJIN Tianjij,300000, CN 65 27 9 47 18 27.69% Prefix AS Path Aggregation Suggestion 42.81.0.0/16 4777 2516 4134 58542 42.81.138.0/24 4777 2497 4134 58542 42.81.168.0/22 4777 2497 4134 58542 + Announce - aggregate of 42.81.168.0/23 (4777 2497 4134 58542) and 42.81.170.0/23 (4777 2497 4134 58542) 42.81.168.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.169.0/24 (4777 2497 4134 58542) 42.81.169.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.168.0/24 (4777 2497 4134 58542) 42.81.170.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.171.0/24 (4777 2497 4134 58542) 42.81.171.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.170.0/24 (4777 2497 4134 58542) 42.81.172.0/23 4777 2497 4134 58542 + Announce - aggregate of 42.81.172.0/24 (4777 2497 4134 58542) and 42.81.173.0/24 (4777 2497 4134 58542) 42.81.172.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.173.0/24 (4777 2497 4134 58542) 42.81.173.0/24 4777 2497 4134 58542 - Withdrawn - aggregated with 42.81.172.0/24 (4777 2497 4134 58542) 43.241.180.0/22 4777 2497 4134 58542 103.45.168.0/24 4777 2516 4134 58542 103.197.0.0/24 4777 2497 4837 4134 58542 103.197.2.0/23 4777 2497 4837 4134 58542 + Announce - aggregate of 103.197.2.0/24 (4777 2497 4837 4134 58542) and 103.197.3.0/24 (4777 2497 4837 4134 58542) 103.197.2.0/24 4777 2497 4837 4134 58542 - Withdrawn - aggregated with 103.197.3.0/24 (4777 2497 4837 4134 58542) 103.197.3.0/24 4777 2497 4837 4134 58542 - Withdrawn - aggregated with 103.197.2.0/24 (4777 2497 4837 4134 58542) 103.233.4.0/22 4777 2497 4134 58542 123.150.70.0/23 4777 2516 4134 58542 123.150.72.0/23 4777 2516 4134 58542 123.150.76.0/22 4777 2497 4134 58542 123.150.174.0/24 4777 2516 4134 58542 123.150.208.0/24 4777 2516 4134 58542 123.151.8.0/21 4777 2516 4134 58542 + Announce - aggregate of 123.151.8.0/22 (4777 2516 4134 58542) and 123.151.12.0/22 (4777 2516 4134 58542) 123.151.8.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.9.0/24 (4777 2516 4134 58542) 123.151.9.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.8.0/24 (4777 2516 4134 58542) 123.151.10.0/23 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.8.0/23 (4777 2516 4134 58542) 123.151.12.0/22 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.8.0/22 (4777 2516 4134 58542) 123.151.26.0/23 4777 2516 4134 58542 123.151.39.0/24 4777 2516 4134 58542 123.151.40.0/24 4777 2516 4134 58542 123.151.42.0/24 4777 2516 4134 58542 123.151.46.0/23 4777 2516 4134 58542 + Announce - aggregate of 123.151.46.0/24 (4777 2516 4134 58542) and 123.151.47.0/24 (4777 2516 4134 58542) 123.151.46.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.47.0/24 (4777 2516 4134 58542) 123.151.47.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.46.0/24 (4777 2516 4134 58542) 123.151.48.0/20 4777 2516 4134 58542 123.151.64.0/20 4777 2516 4134 58542 + Announce - aggregate of 123.151.64.0/21 (4777 2516 4134 58542) and 123.151.72.0/21 (4777 2516 4134 58542) 123.151.64.0/21 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.72.0/21 (4777 2516 4134 58542) 123.151.72.0/22 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.76.0/22 (4777 2516 4134 58542) 123.151.76.0/22 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.72.0/22 (4777 2516 4134 58542) 123.151.92.0/22 4777 2516 4134 58542 123.151.96.0/20 4777 2516 4134 58542 123.151.137.0/24 4777 2516 4134 58542 123.151.138.0/23 4777 2516 4134 58542 + Announce - aggregate of 123.151.138.0/24 (4777 2516 4134 58542) and 123.151.139.0/24 (4777 2516 4134 58542) 123.151.138.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.139.0/24 (4777 2516 4134 58542) 123.151.139.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.138.0/24 (4777 2516 4134 58542) 123.151.144.0/24 4777 2516 4134 58542 123.151.148.0/22 4777 2516 4134 58542 123.151.152.0/22 4777 2516 4134 58542 123.151.156.0/23 4777 2516 4134 58542 123.151.158.0/24 4777 2516 4134 58542 123.151.176.0/21 4777 2516 4134 58542 + Announce - aggregate of 123.151.176.0/22 (4777 2516 4134 58542) and 123.151.180.0/22 (4777 2516 4134 58542) 123.151.176.0/22 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.180.0/22 (4777 2516 4134 58542) 123.151.180.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.181.0/24 (4777 2516 4134 58542) 123.151.181.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.180.0/24 (4777 2516 4134 58542) 123.151.182.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.183.0/24 (4777 2516 4134 58542) 123.151.183.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 123.151.182.0/24 (4777 2516 4134 58542) 123.151.190.0/24 4777 2516 4134 58542 180.213.48.0/20 4777 2516 4134 58542 180.213.52.0/22 4777 2497 4134 58542 180.213.56.0/21 4777 2516 4134 58542 - Withdrawn - matching aggregate 180.213.48.0/20 4777 2516 4134 58542 180.213.64.0/22 4777 2516 4134 58542 180.213.100.0/22 4777 2516 4134 58542 180.213.112.0/20 4777 2516 4134 58542 180.213.240.0/20 4777 2516 4134 58542 218.98.176.0/24 4777 2497 4134 58542 218.98.192.0/24 4777 2497 4134 58542 221.238.34.0/23 4777 2516 4134 58542 + Announce - aggregate of 221.238.34.0/24 (4777 2516 4134 58542) and 221.238.35.0/24 (4777 2516 4134 58542) 221.238.34.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 221.238.35.0/24 (4777 2516 4134 58542) 221.238.35.0/24 4777 2516 4134 58542 - Withdrawn - aggregated with 221.238.34.0/24 (4777 2516 4134 58542) 221.238.41.0/24 4777 2516 4134 58542 221.238.70.0/24 4777 2497 4134 58542 221.238.73.0/24 4777 2497 4134 58542 221.238.92.0/24 4777 2497 4134 58542 221.238.94.0/24 4777 2497 4134 58542
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS58542 63 More Specifics 65 Total Advertisements CHINATELECOM-TIANJIN Tianjij,300000, CN
42.81.0.0/16 42.80.0.0/15
42.81.138.0/24 42.80.0.0/15
42.81.168.0/24 42.80.0.0/15
42.81.169.0/24 42.80.0.0/15
42.81.170.0/24 42.80.0.0/15
42.81.171.0/24 42.80.0.0/15
42.81.172.0/24 42.80.0.0/15
42.81.173.0/24 42.80.0.0/15
103.45.168.0/24 103.45.168.0/22
103.197.0.0/24 103.197.0.0/22
103.197.2.0/24 103.197.0.0/22
103.197.3.0/24 103.197.0.0/22
123.150.70.0/23 123.150.0.0/15
123.150.72.0/23 123.150.0.0/15
123.150.76.0/22 123.150.0.0/15
123.150.174.0/24 123.150.0.0/15
123.150.208.0/24 123.150.0.0/15
123.151.8.0/24 123.150.0.0/15
123.151.9.0/24 123.150.0.0/15
123.151.10.0/23 123.150.0.0/15
123.151.12.0/22 123.150.0.0/15
123.151.26.0/23 123.150.0.0/15
123.151.39.0/24 123.150.0.0/15
123.151.40.0/24 123.150.0.0/15
123.151.42.0/24 123.150.0.0/15
123.151.46.0/24 123.150.0.0/15
123.151.47.0/24 123.150.0.0/15
123.151.48.0/20 123.150.0.0/15
123.151.64.0/21 123.150.0.0/15
123.151.72.0/22 123.150.0.0/15
123.151.76.0/22 123.150.0.0/15
123.151.92.0/22 123.150.0.0/15
123.151.96.0/20 123.150.0.0/15
123.151.137.0/24 123.150.0.0/15
123.151.138.0/24 123.150.0.0/15
123.151.139.0/24 123.150.0.0/15
123.151.144.0/24 123.150.0.0/15
123.151.148.0/22 123.150.0.0/15
123.151.152.0/22 123.150.0.0/15
123.151.156.0/23 123.150.0.0/15
123.151.158.0/24 123.150.0.0/15
123.151.176.0/22 123.150.0.0/15
123.151.180.0/24 123.150.0.0/15
123.151.181.0/24 123.150.0.0/15
123.151.182.0/24 123.150.0.0/15
123.151.183.0/24 123.150.0.0/15
123.151.190.0/24 123.150.0.0/15
180.213.48.0/20 180.212.0.0/15
180.213.52.0/22 180.212.0.0/15
180.213.56.0/21 180.212.0.0/15
180.213.64.0/22 180.212.0.0/15
180.213.100.0/22 180.212.0.0/15
180.213.112.0/20 180.212.0.0/15
180.213.240.0/20 180.212.0.0/15
218.98.176.0/24 218.98.128.0/18
218.98.192.0/24 218.98.192.0/19
221.238.34.0/24 221.238.0.0/16
221.238.35.0/24 221.238.0.0/16
221.238.41.0/24 221.238.0.0/16
221.238.70.0/24 221.238.0.0/16
221.238.73.0/24 221.238.0.0/16
221.238.92.0/24 221.238.0.0/16
221.238.94.0/24 221.238.0.0/16
whois: 402332
IANA has recorded AS58542 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS58542\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS58368 - AS59391'
as-block: AS58368 - AS59391
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: 2011-08-10T06:21:41Z
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 'AS58542'
% Abuse contact for 'AS58542' is 'anti-spam@chinatelecom.cn'
aut-num: AS58542
as-name: CHINATELECOM-TIANJIN
descr: Tianjij,300000
country: CN
admin-c: CH93-AP
tech-c: CH93-AP
abuse-c: AC1573-AP
notify: Zhengzm@chinatelecom.cn
mnt-lower: MAINT-CHINANET
mnt-routes: MAINT-CHINANET-TJ
mnt-by: APNIC-HM
mnt-irt: IRT-CHINANET-CN
last-modified: 2020-05-25T00:11:10Z
source: APNIC
irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@chinatelecom.cn
abuse-mailbox: anti-spam@chinatelecom.cn
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
remarks: anti-spam@chinatelecom.cn was validated on 2025-11-13
mnt-by: MAINT-CHINANET
last-modified: 2026-03-13T07:12:20Z
source: APNIC
role: ABUSE CHINANETCN
country: ZZ
address: No.31 ,jingrong street,beijing
address: 100032
phone: +000000000
e-mail: anti-spam@chinatelecom.cn
admin-c: CH93-AP
tech-c: CH93-AP
nic-hdl: AC1573-AP
remarks: Generated from irt object IRT-CHINANET-CN
remarks: anti-spam@chinatelecom.cn was validated on 2025-11-13
abuse-mailbox: anti-spam@chinatelecom.cn
mnt-by: APNIC-ABUSE
last-modified: 2025-11-13T14:15:15Z
source: APNIC
person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@chinatelecom.cn
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2022-02-28T06:53:44Z
source: APNIC
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