% APNIC found the following authoritative answer from: whois.apnic.net

% [whois.apnic.net]
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% Information related to '103.53.40.0 - 103.53.43.255'

% Abuse contact for '103.53.40.0 - 103.53.43.255' is 'abuse@hostgator.in'

inetnum:        103.53.40.0 - 103.53.43.255
netname:        HGINDIA-AP
descr:          Hostgator.com LLC
country:        IN
org:            ORG-HL14-AP
admin-c:        HIND1-AP
tech-c:         HIND1-AP
abuse-c:        AH851-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-HGINDIA-AP
mnt-routes:     MAINT-HGINDIA-AP
mnt-irt:        IRT-HGINDIA-AP
last-modified:  2020-05-27T09:45:30Z
source:         APNIC

irt:            IRT-HGINDIA-AP
address:        1st Floor, Near Mahatma Nagar Cricket Ground, Mahatma Nagar, Nashik, Maharashtra, India
e-mail:         net-eng-team@newfold.com
abuse-mailbox:  abuse@hostgator.in
admin-c:        HIND1-AP
tech-c:         HIND1-AP
auth:           # Filtered
remarks:        net-eng-team@newfold.com was validated on 2025-09-30
remarks:        abuse@hostgator.in was validated on 2025-12-05
mnt-by:         MAINT-HGINDIA-AP
last-modified:  2025-12-05T05:53:18Z
source:         APNIC

organisation:   ORG-HL14-AP
org-name:       Hostgator.com LLC
org-type:       LIR
country:        US
address:        Endurance International Group
address:        10 Corporate Drive, Burlington, MA 01803 US
phone:          +1-781-852-3200
e-mail:         eig-net-team@endurance.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:46Z
source:         APNIC

role:           ABUSE HGINDIAAP
country:        ZZ
address:        1st Floor, Near Mahatma Nagar Cricket Ground, Mahatma Nagar, Nashik, Maharashtra, India
phone:          +000000000
e-mail:         net-eng-team@newfold.com
admin-c:        HIND1-AP
tech-c:         HIND1-AP
nic-hdl:        AH851-AP
remarks:        Generated from irt object IRT-HGINDIA-AP
remarks:        net-eng-team@newfold.com was validated on 2025-09-30
remarks:        abuse@hostgator.in was validated on 2025-12-05
abuse-mailbox:  abuse@hostgator.in
mnt-by:         APNIC-ABUSE
last-modified:  2025-12-05T05:53:40Z
source:         APNIC

role:           Hostgator India - Network Division
address:        Near Kings Park Layout, Maryhill, Mangalore 575 015, Karnataka, India
country:        IN
phone:          +14152300648
e-mail:         abuse@hostgator.in
admin-c:        HIND1-AP
tech-c:         HIND1-AP
nic-hdl:        HIND1-AP
mnt-by:         MAINT-HGINDIA-AP
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
remarks:        Please send abuse reports to abuse@hostgator.in
remarks:        -+-+-+-+-+-+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+-+
last-modified:  2017-03-09T09:57:33Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.36-SNAPSHOT (WHOIS-AU5)