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

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

% Information related to '43.251.168.0 - 43.251.171.255'

% Abuse contact for '43.251.168.0 - 43.251.171.255' is 'tapabrata@pmplbroadband.net'

inetnum:        43.251.168.0 - 43.251.171.255
netname:        DREAMCHASER
descr:          Dreamchaser Marketing Private Limited
admin-c:        IH174-AP
tech-c:         IH174-AP
country:        IN
mnt-by:         MAINT-IN-IRINN
mnt-irt:        IRT-Dreamchaser-IN
mnt-routes:     MAINT-IN-DREAMCHASER
mnt-routes:     MAINT-IN-IRINN
status:         ASSIGNED PORTABLE
last-modified:  2025-08-11T22:47:21Z
source:         APNIC

irt:            IRT-Dreamchaser-IN
address:        48 4 A, BT Road, 1st Floor, Kolkata,Kolkata,West Bengal-700050
e-mail:         tapabrata@pmplbroadband.net
abuse-mailbox:  tapabrata@pmplbroadband.net
admin-c:        TM1084-AP
tech-c:         TM1084-AP
auth:           # Filtered
mnt-by:         MAINT-ABAWSPL-IN
mnt-by:         MAINT-IN-IRINN
last-modified:  2026-01-12T05:14:43Z
source:         APNIC

person:         IRINN Helpdesk
address:        National Internet Exchange of India 9th Floor, B-Wing, Statesman House, 148, Barakhamba Road,
address:        New Delhi-1
country:        IN
phone:          +91 11 48202030
fax-no:         +91 11 48202013
e-mail:         helpdesk@irinn.in
nic-hdl:        IH174-AP
abuse-mailbox:  abuse@irinn.in
mnt-by:         MAINT-IN-IRINN
last-modified:  2021-08-24T07:44:07Z
source:         APNIC

% Information related to '43.251.169.0/24AS45804'

route:          43.251.169.0/24
descr:          route object for 43.251.169.0/24
country:        IN
origin:         AS45804
mnt-lower:      MAINT-IN-MEGHBELA
mnt-routes:     MAINT-IN-MEGHBELA
mnt-by:         MAINT-IN-IRINN
mnt-routes:     MAINT-IN-IRINN
last-modified:  2025-12-14T22:16:52Z
source:         APNIC

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