This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS64021 35 More Specifics 38 Total Advertisements NETWORK-TRANSIT Network-Transit, CN
43.229.152.0/24 43.229.152.0/22
43.229.153.0/24 43.229.152.0/22
43.229.154.0/24 43.229.152.0/22
43.230.8.0/24 43.230.8.0/22
43.230.11.0/24 43.230.8.0/22
43.252.208.0/24 43.252.208.0/22
43.252.210.0/24 43.252.208.0/22
43.252.211.0/24 43.252.208.0/22
43.255.117.0/24 43.255.116.0/22
43.255.118.0/24 43.255.116.0/22
43.255.119.0/24 43.255.116.0/22
45.121.212.0/24 45.121.212.0/22
45.121.213.0/24 45.121.212.0/22
103.43.172.0/24 103.43.172.0/22
103.49.60.0/24 103.49.60.0/22
103.49.62.0/24 103.49.60.0/22
103.62.52.0/24 103.62.52.0/22
103.62.53.0/24 103.62.52.0/22
103.62.55.0/24 103.62.52.0/22
103.104.199.0/24 103.104.198.0/23
103.215.124.0/24 103.215.124.0/22
103.215.127.0/24 103.215.124.0/22
103.235.19.0/24 103.235.16.0/22
103.237.101.0/24 103.237.100.0/22
103.237.103.0/24 103.237.100.0/22
103.239.100.0/24 103.239.100.0/22
103.239.102.0/24 103.239.100.0/22
150.107.1.0/24 150.107.0.0/22
150.107.3.0/24 150.107.0.0/22
156.253.32.0/20 156.224.0.0/11
157.119.20.0/24 157.119.20.0/22
163.53.244.0/24 163.53.244.0/22
163.53.245.0/24 163.53.244.0/22
163.53.247.0/24 163.53.244.0/22
192.155.181.0/24 192.155.160.0/19
43.255.116.0/24 43.255.116.0/22
103.228.66.0/24 103.228.64.0/22
103.228.67.0/24 103.228.64.0/22
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 43.229.152.0/24 Announced
+ 43.229.153.0/24 Announced
+ 43.229.154.0/24 Announced
+ 43.230.8.0/24 Announced
+ 43.252.208.0/24 Announced
+ 43.252.210.0/24 Announced
+ 43.252.211.0/24 Announced
+ 43.255.37.0/24 Announced
+ 43.255.118.0/24 Announced
+ 45.121.212.0/22 Announced
+ 45.121.212.0/24 Announced
+ 45.121.213.0/24 Announced
+ 103.43.172.0/24 Announced
+ 103.49.60.0/24 Announced
+ 103.49.62.0/24 Announced
+ 103.62.52.0/24 Announced
+ 103.62.53.0/24 Announced
+ 103.62.55.0/24 Announced
+ 103.104.199.0/24 Announced
+ 103.215.124.0/24 Announced
+ 103.215.127.0/24 Announced
+ 103.235.19.0/24 Announced
+ 103.237.101.0/24 Announced
+ 103.237.103.0/24 Announced
+ 103.239.100.0/24 Announced
+ 103.239.102.0/24 Announced
+ 150.107.1.0/24 Announced
+ 150.107.3.0/24 Announced
+ 160.181.176.0/20 Announced
+ 163.53.244.0/24 Announced
+ 163.53.245.0/24 Announced
+ 163.53.247.0/24 Announced
+ 192.155.181.0/24 Announced
- 43.255.116.0/24 Withdrawn
- 103.228.66.0/24 Withdrawn
- 103.228.67.0/24 Withdrawn
whois: 402590
IANA has recorded AS64021 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS64021\n % [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS64000 - AS64098'
as-block: AS64000 - AS64098
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: 2014-09-03T01:31:49Z
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 'AS64021'
% Abuse contact for 'AS64021' is 'abuse@hknetbroadband.com'
aut-num: AS64021
as-name: Network-Transit
descr: Network-Transit
country: HK
org: ORG-HKBT1-AP
admin-c: AH1309-AP
tech-c: AH1309-AP
abuse-c: AH1311-AP
mnt-lower: MAINT-HKNET-BROADBAND
mnt-routes: MAINT-HKNET-BROADBAND
mnt-by: APNIC-HM
mnt-irt: IRT-HKNET-BROADBAND
last-modified: 2023-04-16T00:13:53Z
source: APNIC
irt: IRT-HKNET-BROADBAND
address: 1 Trademart Drive, Kowloon Bay, Hong Kong
e-mail: abuse@hknetbroadband.com
abuse-mailbox: abuse@hknetbroadband.com
admin-c: NA881-AP
tech-c: NA881-AP
auth: # Filtered
remarks: abuse@hknetbroadband.com was validated on 2025-12-23
mnt-by: MAINT-HKNET-BROADBAND
last-modified: 2025-12-23T07:59:07Z
source: APNIC
organisation: ORG-HKBT1-AP
org-name: Hong Kong Business Telecom Limited
org-type: LIR
country: HK
address: RMD,SUITE C1,6/F WING HING INDUSTRIAL BUILDING
address: 14 HING YIP STREET
phone: +85230123106
e-mail: abuse@hknetbroadband.com
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:16:04Z
source: APNIC
role: APNIC Hostmaster
address: 1 Trademart Drive, Kowloon Bay, Hong Kong
country: HK
phone: +85230123106
e-mail: admin@hknetbroadband.com
admin-c: AMS11-AP
tech-c: AMS11-AP
nic-hdl: AH1309-AP
mnt-by: MAINT-HK-TELE
last-modified: 2021-06-02T06:14:10Z
source: APNIC
role: ABUSE HKNETBROADBAND
country: ZZ
address: 1 Trademart Drive, Kowloon Bay, Hong Kong
phone: +000000000
e-mail: abuse@hknetbroadband.com
admin-c: NA881-AP
tech-c: NA881-AP
nic-hdl: AH1311-AP
remarks: Generated from irt object IRT-HKNET-BROADBAND
remarks: abuse@hknetbroadband.com was validated on 2025-12-23
abuse-mailbox: abuse@hknetbroadband.com
mnt-by: APNIC-ABUSE
last-modified: 2025-12-23T07:59:37Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5)