% 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 '120.136.48.0 - 120.136.63.255'

% Abuse contact for '120.136.48.0 - 120.136.63.255' is 'ams-faults@atturra.com'

inetnum:        120.136.48.0 - 120.136.63.255
netname:        Solarix-Limited
descr:          Solarix Limited - ISP Auckland NZ
country:        NZ
org:            ORG-SNL6-AP
admin-c:        SN412-AP
tech-c:         SN412-AP
abuse-c:        AS2186-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-NZ-SOLARIX
mnt-routes:     MAINT-NZ-SOLARIX
mnt-irt:        IRT-SOLARIX-NZ
last-modified:  2020-10-20T00:58:33Z
source:         APNIC

irt:            IRT-SOLARIX-NZ
address:        PO Box 300-240
address:        Albany
address:        Auckland, 0752
address:        New Zealand
e-mail:         ams-faults@atturra.com
abuse-mailbox:  ams-faults@atturra.com
admin-c:        SN412-AP
tech-c:         SN412-AP
auth:           # Filtered
remarks:        ams-faults@atturra.com was validated on 2025-09-03
mnt-by:         MAINT-NZ-SOLARIX
last-modified:  2025-11-18T00:26:21Z
source:         APNIC

organisation:   ORG-SNL6-AP
org-name:       Solarix Networks Limited
org-type:       LIR
country:        NZ
address:        5 Omega Drive
address:        Albany
phone:          +64-9-915-9847
fax-no:         +64-9-9744760
e-mail:         ams-faults@atturra.com
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-09-03T13:16:14Z
source:         APNIC

role:           ABUSE SOLARIXNZ
country:        ZZ
address:        PO Box 300-240
address:        Albany
address:        Auckland, 0752
address:        New Zealand
phone:          +000000000
e-mail:         ams-faults@atturra.com
admin-c:        SN412-AP
tech-c:         SN412-AP
nic-hdl:        AS2186-AP
remarks:        Generated from irt object IRT-SOLARIX-NZ
remarks:        ams-faults@atturra.com was validated on 2025-09-03
abuse-mailbox:  ams-faults@atturra.com
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-04T16:31:57Z
source:         APNIC

person:         Solarix NOC
address:        5 Omega Street
address:        Rosedale
address:        Auckland 0632
country:        NZ
phone:          +64 9 974 4750
e-mail:         noc@solarix.co.nz
nic-hdl:        SN412-AP
notify:         noc@solarix.co.nz
mnt-by:         MAINT-NZ-SOLARIX
last-modified:  2022-11-07T00:32:29Z
source:         APNIC

% Information related to '120.136.48.0/21AS23838'

route:          120.136.48.0/21
origin:         AS23838
descr:          Solarix Networks Limited
                PO Box 300240
mnt-by:         MAINT-NZ-SOLARIX
last-modified:  2024-04-02T01:04:25Z
source:         APNIC

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