% 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 '2400:adc0::/27'

% Abuse contact for '2400:adc0::/27' is 'noc-abuse@cyber.net.pk'

inet6num:       2400:adc0::/27
netname:        CYBERNET-PK
descr:          Cyber Internet Services Pakistan
country:        PK
org:            ORG-CISP3-AP
admin-c:        AQ84-AP
tech-c:         AQ84-AP
abuse-c:        AC1727-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-PK-CYBERNET
mnt-routes:     MAINT-PK-CYBERNET
mnt-irt:        IRT-CYBERNET-PK
last-modified:  2020-06-10T13:04:08Z
source:         APNIC

irt:            IRT-CYBERNET-PK
address:        A904, 9th Floor,Lakson Bldg 3,Sarwar Shaheed Rd,Karachi-74200
e-mail:         noc-abuse@cyber.net.pk
abuse-mailbox:  noc-abuse@cyber.net.pk
admin-c:        AQ84-AP
tech-c:         AQ84-AP
auth:           # Filtered
remarks:        noc-abuse@cyber.net.pk was validated on 2024-10-11
mnt-by:         MAINT-PK-AQ
last-modified:  2024-10-11T06:45:44Z
source:         APNIC

organisation:   ORG-CISP3-AP
org-name:       Cyber Internet Services (Private) Limited
org-type:       LIR
country:        PK
address:        A - 904 9th Floor Lakson Square Building No. 3
address:        No. 3, Sarwar Shaheed Road Karachi-74200 Pakistan
phone:          +92-21-38400654
fax-no:         +92-213-5680842
e-mail:         noc-abuse@cyber.net.pk
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:44Z
source:         APNIC

role:           ABUSE CYBERNETPK
country:        ZZ
address:        A904, 9th Floor,Lakson Bldg 3,Sarwar Shaheed Rd,Karachi-74200
phone:          +000000000
e-mail:         noc-abuse@cyber.net.pk
admin-c:        AQ84-AP
tech-c:         AQ84-AP
nic-hdl:        AC1727-AP
remarks:        Generated from irt object IRT-CYBERNET-PK
remarks:        noc-abuse@cyber.net.pk was validated on 2024-10-11
abuse-mailbox:  noc-abuse@cyber.net.pk
mnt-by:         APNIC-ABUSE
last-modified:  2024-10-11T06:50:12Z
source:         APNIC

person:         Amjad Qasmi
address:        A904, 9th Floor,Lakson Bldg 3,Sarwar Shaheed Rd,Karachi-74200
country:        PK
phone:          +92-021-38400654
e-mail:         zhqasmi@cyber.net.pk
nic-hdl:        AQ84-AP
abuse-mailbox:  noc-abuse@cyber.net.pk
mnt-by:         MAINT-PK-AQ
last-modified:  2021-08-31T07:15:27Z
source:         APNIC

% Information related to '2400:adc7:3100::/40AS9541'

route6:         2400:adc7:3100::/40
origin:         AS9541
descr:          Cyber Internet Services (Private) Limited
                A - 904  9th Floor Lakson Square Building No. 3
                No. 3, Sarwar Shaheed Road Karachi-74200 Pakistan
mnt-by:         MAINT-PK-CYBERNET
last-modified:  2020-12-17T10:00:56Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.25 (WHOIS-AU2)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		Query hints Include "AS" in front of an AS number. Example: AS4808 Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template Example: -t inetnum
-x	Exact match only
-d	Associated reverse domain