% 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 '42.0.5.0 - 42.0.5.255'

% Abuse contact for '42.0.5.0 - 42.0.5.255' is 'ashique.aziz@robi.com.bd'

inetnum:        42.0.5.0 - 42.0.5.255
netname:        AXIATA-BD
descr:          Robi Axitata Ltd- DATA
country:        BD
admin-c:        MTB-AP
tech-c:         MTB-AP
abuse-c:        AA2242-AP
status:         ALLOCATED NON-PORTABLE
mnt-by:         MAINT-BD-TMIB
mnt-irt:        IRT-AXIATA-BD
last-modified:  2021-01-14T22:44:08Z
source:         APNIC

irt:            IRT-AXIATA-BD
address:        Robi Corporate Centre
address:        53 Gulshan South Avenue Gulshan 1
e-mail:         ashique.aziz@robi.com.bd
abuse-mailbox:  ashique.aziz@robi.com.bd
admin-c:        SS802-AP
tech-c:         SS802-AP
auth:           # Filtered
remarks:        ashique.aziz@robi.com.bd
remarks:        ashique.aziz@robi.com.bd was validated on 2023-05-24
mnt-by:         MAINT-BD-TMIB
last-modified:  2023-05-24T16:23:40Z
source:         APNIC

role:           ABUSE AXIATABD
address:        Robi Corporate Centre
address:        53 Gulshan South Avenue Gulshan 1
country:        ZZ
phone:          +000000000
e-mail:         ashique.aziz@robi.com.bd
admin-c:        SS802-AP
tech-c:         SS802-AP
nic-hdl:        AA2242-AP
remarks:        Generated from irt object IRT-AXIATA-BD
remarks:        ashique.aziz@robi.com.bd was validated on 2023-05-24
abuse-mailbox:  ashique.aziz@robi.com.bd
mnt-by:         APNIC-ABUSE
last-modified:  2023-05-24T16:24:25Z
source:         APNIC

person:         Mohammad Tasleem Bashar
nic-hdl:        MTB-AP
e-mail:         hostmaster@robi.com.bd
address:        Level 8, Nafi Tower, Gulshan -1, Dhaka -1212
phone:          +88-0189-210043
fax-no:         +88-02-9885463
country:        BD
mnt-by:         MAINT-NEW
last-modified:  2013-08-06T23:48:34Z
source:         APNIC

% Information related to '42.0.5.0/24AS24432'

route:          42.0.5.0/24
descr:          Route Object of 42.0.5.0/24
origin:         AS24432
mnt-by:         MAINT-BD-TMIB
mnt-lower:      MAINT-BD-TMIB
mnt-routes:     MAINT-BD-TMIB
last-modified:  2017-11-07T06:09:38Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU1)

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