ASN Lookup Tool

% [whois.apnic.net]
% Whois data copyright terms    http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS45056 - AS46079'

as-block:       AS45056 - AS46079
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:  2009-09-29T05:48:11Z
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 'AS45501'

% Abuse contact for 'AS45501' is 'rir-abuse@yahooinc.com'

aut-num:        AS45501
as-name:        YAHOO-CORP-SG-AS-AP
descr:          Yahoo Corp Network
descr:          Singapore
country:        SG
import:         from AS10310 action pref=200; accept ANY
import:         from AS18293 action pref=100; accept ANY
export:         to AS10310 announce AS45501
export:         to AS18293 announce AS45501
org:            ORG-YI2-AP
admin-c:        KT273-AP
tech-c:         KT273-AP
abuse-c:        AY531-AP
notify:         kwtso@yahoo-inc.com
mnt-lower:      MAINT-YAHOOISNET-HK
mnt-routes:     MAINT-YAHOOISNET-HK
mnt-by:         APNIC-HM
mnt-irt:        IRT-YAHOOISNET-HK
last-modified:  2021-01-15T01:47:10Z
source:         APNIC

irt:            IRT-YAHOOISNET-HK
address:        701 First Avenue
address:        Sunnyvale
e-mail:         rir-admin@yahooinc.com
abuse-mailbox:  rir-abuse@yahooinc.com
admin-c:        BC365-AP
tech-c:         KT273-AP
auth:           # Filtered
remarks:        rir-abuse@yahooinc.com was validated on 2025-08-27
remarks:        rir-admin@yahooinc.com is invalid
mnt-by:         MAINT-YAHOOISNET-HK
last-modified:  2026-01-07T13:08:00Z
source:         APNIC

organisation:   ORG-YI2-AP
org-name:       Yahoo IS-NET
org-type:       LIR
country:        HK
address:        Suite 2707-13, 27F,
address:        Devon House Taikoo Place,
address:        979 King's Rd,
address:        Quarry Bay
phone:          +852---21206875
e-mail:         rir-admin@yahooinc.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-06-10T12:57:44Z
source:         APNIC

role:           ABUSE YAHOOISNETHK
country:        ZZ
address:        701 First Avenue
address:        Sunnyvale
phone:          +000000000
e-mail:         rir-admin@yahooinc.com
admin-c:        BC365-AP
tech-c:         KT273-AP
nic-hdl:        AY531-AP
remarks:        Generated from irt object IRT-YAHOOISNET-HK
remarks:        rir-abuse@yahooinc.com was validated on 2025-08-27
remarks:        rir-admin@yahooinc.com is invalid
abuse-mailbox:  rir-abuse@yahooinc.com
mnt-by:         APNIC-ABUSE
last-modified:  2026-01-07T13:09:05Z
source:         APNIC

person:         Ka Wing Tso
nic-hdl:        KT273-AP
e-mail:         kwtso@yahoo-inc.com
address:        27/F, Sunning Plaza,
address:        10 Hysan Avenue,
address:        Causeway Bay, Hong Kong
phone:          +852-28376275
fax-no:         +852-25041423
country:        HK
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:49:45Z
source:         APNIC

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