% 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 '122.155.160.0 - 122.155.191.255'

% Abuse contact for '122.155.160.0 - 122.155.191.255' is 'noc@cat.net.th'

inetnum:        122.155.160.0 - 122.155.191.255
netname:        CAT-IDC2-Service
descr:          CAT IDC2 14th floor CAT IDC2 14th floor(This space is statically assigned.)
country:        TH
admin-c:        SC1450-AP
tech-c:         CS416-AP
abuse-c:        AC1657-AP
status:         ALLOCATED NON-PORTABLE
remarks:        ***send spam abuse to support@idc.cattelecom.com***
notify:         support@idc.cattelecom.com
mnt-by:         MAINT-TH-THIX-CAT
mnt-lower:      MAINT-TH-THIX-CAT
mnt-routes:     MAINT-TH-THIX-CAT
mnt-irt:        IRT-CAT-TH
last-modified:  2021-01-27T22:15:19Z
source:         APNIC

irt:            IRT-CAT-TH
address:        National Telecom Public Company Limited (CAT)
address:        NT Tower Bangkok Bangkok 10500
address:        Thailand
e-mail:         noc@cat.net.th
abuse-mailbox:  noc@cat.net.th
admin-c:        TC476-AP
tech-c:         IC174-AP
auth:           # Filtered
remarks:        noc@cat.net.th was validated on 2023-12-06
mnt-by:         MAINT-TH-THIX-CAT
last-modified:  2023-12-06T04:03:03Z
source:         APNIC

role:           ABUSE CATTH
address:        National Telecom Public Company Limited (CAT)
address:        NT Tower Bangkok Bangkok 10500
address:        Thailand
country:        ZZ
phone:          +000000000
e-mail:         noc@cat.net.th
admin-c:        TC476-AP
tech-c:         IC174-AP
nic-hdl:        AC1657-AP
remarks:        Generated from irt object IRT-CAT-TH
remarks:        noc@cat.net.th was validated on 2023-12-06
abuse-mailbox:  noc@cat.net.th
mnt-by:         APNIC-ABUSE
last-modified:  2023-12-06T04:10:30Z
source:         APNIC

person:         CAT-IDC Spamming tracking team
nic-hdl:        CS416-AP
e-mail:         abuse@idc.cattelecom.com
address:        Internet data center department CAT Tower floor 13    72 charenkrung Rd. Bangrak  Bangkok
phone:          +66-210-41240
fax-no:         +66-210-41244
country:        TH
mnt-by:         MAINT-NEW
last-modified:  2009-12-11T10:30:13Z
source:         APNIC

person:         support CAT IDC
nic-hdl:        SC1450-AP
e-mail:         support@idc.cattelecom.com
address:        CAT-IDC Data Comm. Dept.(IDC)
address:        CAT Telecom Public Company Ltd,
address:        72 Charoenkrung Road Bangrak Bangkok THAILAND 10501
address:
phone:          +66-2-6141240-3
fax-no:         +66-2-6142270
country:        TH
mnt-by:         MAINT-NEW
last-modified:  2008-09-04T07:48:55Z
source:         APNIC

% Information related to '122.155.174.0/24AS9335'

route:          122.155.174.0/24
origin:         AS9335
descr:          CAT Telecom Public Company Limited
                13th CAT TELECOM TOWER
                NEW ROAD SRIPHRAYA BANGRAK
                BANGKOK
                THAILAND
mnt-by:         MAINT-TH-THIX-CAT
last-modified:  2023-10-02T09:10:33Z
source:         APNIC

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

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