AS23881 UDomain Web Hosting Company Ltd 🇭🇰 HK

UDomain Web Hosting Company Limited. Announcing 73 prefixes, seen at the RIS collectors.

IPv4 prefixes

18,176 (71 × /24)

IPv6 prefixes

2 × /48

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS23881
Name: UDomain Web Hosting Company Ltd
Organisation: UDomain Web Hosting Company Limited
Country: 🇭🇰 HK
RIR: APNIC
Allocated: 2003-08-19
Traffic levels: 50-100Gbps
Scope: Asia Pacific
Peering policy: Open
Website: http://www.udomain.hk
PeeringDB: net/4730
Facilities: 3

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

71 valid (97.3%) 0 invalid (0.0%) 2 no ROA (2.7%)

Whois

Fetched from whois.apnic.net

as-block:       AS23552 - AS24575
descr:          APNIC ASN block
remarks:        These AS numbers are further assigned by APNIC
remarks:        to APNIC members and end-users in the APNIC region
remarks:        AS23889 has been transfered to AfriNIC
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

as-block:       AS23854 - AS23944
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:  2008-09-04T06:40:26Z
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

aut-num:        AS23881
as-name:        UDOMAIN-AS-AP
descr:          UDomain Web Hosting Company Ltd
descr:          Hong Kong
country:        HK
import:         from AS7540 action pref=100; accept ANY
import:         from AS2914 action pref=100; accept ANY
export:         to AS7540 announce AS23881
export:         to AS2914 announce AS23881
export:         to AS-ANY announce AS23881
org:            ORG-UWHC1-AP
admin-c:        UA32-AP
tech-c:         UA32-AP
abuse-c:        AU97-AP
mnt-lower:      MAINT-HK-UDOMAIN
mnt-routes:     MAINT-HK-UDOMAIN
mnt-by:         APNIC-HM
mnt-irt:        IRT-UDOMAIN-HK
last-modified:  2020-06-15T01:32:17Z
source:         APNIC

irt:            IRT-UDOMAIN-HK
address:        18/F, Kinox Centre, 9 Hung To Road, Hong Kong
address:        Hong Kong
e-mail:         report_abuse@udomain.hk
abuse-mailbox:  report_abuse@udomain.hk
admin-c:        UA32-AP
tech-c:         UA32-AP
auth:           # Filtered
remarks:        report_abuse@udomain.hk was validated on 2026-10-19
mnt-by:         MAINT-HK-UDOMAIN
last-modified:  2026-10-19T15:50:12Z
source:         APNIC

organisation:   ORG-UWHC1-AP
org-name:       UDomain Web Hosting Company Limited
org-type:       LIR
country:        HK
address:        18/F,
address:        Kinox Centre,
address:        9 Hung To Road,
address:        Kwun Tong, Kowloon.
phone:          +852-2554-7545
fax-no:         +852-2554-7900
e-mail:         noc@udomain.hk
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:57Z
source:         APNIC

role:           ABUSE UDOMAINHK
country:        ZZ
address:        18/F, Kinox Centre, 9 Hung To Road, Hong Kong
address:        Hong Kong
phone:          +000000000
e-mail:         report_abuse@udomain.hk
admin-c:        UA32-AP
tech-c:         UA32-AP
nic-hdl:        AU97-AP
remarks:        Generated from irt object IRT-UDOMAIN-HK
remarks:        report_abuse@udomain.hk was validated on 2026-10-19
abuse-mailbox:  report_abuse@udomain.hk
mnt-by:         APNIC-ABUSE
last-modified:  2026-10-19T15:50:52Z
source:         APNIC

role:           UDOMAIN ADMINISTRATORS
address:        Unit A - D, 6th Floor, Wing Cheung Industrial Building, No. 109 How Ming Street, Kwun Tong, Kowloon
country:        HK
phone:          +852 2554 7545
e-mail:         noc@udomain.hk
admin-c:        UN22-AP
tech-c:         UN22-AP
nic-hdl:        UA32-AP
mnt-by:         MAINT-HK-UDOMAIN
last-modified:  2017-10-16T08:26:03Z
source:         APNIC