% 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 '196.12.46.128 - 196.12.46.159'

% Abuse contact for '196.12.46.128 - 196.12.46.159' is 'complain@irinn.in'

inetnum:        196.12.46.128 - 196.12.46.159
netname:        STPH15D
descr:          imported inetnum object for C00009485
country:        IN
admin-c:        OHC3-AP
tech-c:         OHC3-AP
status:         ASSIGNED PORTABLE
remarks:        ----------
remarks:        imported from ARIN object:
remarks:
remarks:        inetnum:     196.12.46.128 - 196.12.46.159
remarks:        netname:     STPH15D
remarks:        org-id:      C00009485
remarks:        status:      reassignment
remarks:        reg-date:    1996-12-12
remarks:        changed:     hostmaster@arin.net 19961212
remarks:        source:      ARIN
remarks:
remarks:        ----------
notify:         helpdesk@apnic.net
mnt-by:         MNT-STPN-IN
mnt-routes:     MAINT-IN-IRINN
mnt-irt:        IRT-IRINN-IN
last-modified:  2025-08-11T22:57:43Z
source:         APNIC

irt:            IRT-IRINN-IN
address:        National Internet Exchange of India,9th Floor, B-Wing, Statesman House, 148, Barakhamba Road
address:        New Delhi-1
e-mail:         complain@irinn.in
abuse-mailbox:  complain@irinn.in
admin-c:        IH175-AP
tech-c:         IH174-AP
auth:           # Filtered
mnt-by:         MAINT-IN-IRINN
last-modified:  2026-01-12T05:15:45Z
source:         APNIC

person:         Outdated historical contact
address:        Unknown
country:        AP
e-mail:         outdated-historical-contact@apnic.net
nic-hdl:        OHC3-AP
phone:          +61 7 38583188
remarks:        This person object is used as a placeholder
remarks:        as the contacts for the IP or ASN registrations
remarks:        have become outdated or unavailable.
remarks:        If you believe that you are the legal custodian
remarks:        of this address range please contact the APNIC
remarks:        to have the registrations updated.
remarks:        http://www.apnic.net/helpdesk
notify:         dbmon@apnic.net
mnt-by:         APNIC-HM
last-modified:  2011-06-03T04:46:34Z
source:         APNIC

% Information related to '196.12.46.0/24AS7633'

route:          196.12.46.0/24
descr:          STPI-HYDERABAD
origin:         AS7633
country:        IN
remarks:        Route Object for STPI-HYDERABAD
mnt-lower:      MAINT-SOFTNET-AP
mnt-routes:     MAINT-SOFTNET-AP
mnt-by:         MAINT-SOFTNET-AP
mnt-by:         MAINT-IN-IRINN
mnt-routes:     MAINT-IN-IRINN
last-modified:  2025-12-14T22:03:44Z
source:         APNIC

% This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-AU4)