% 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 '14.139.187.128 - 14.139.187.143'

% Abuse contact for '14.139.187.128 - 14.139.187.143' is 'abuseteam@nkn.in'

inetnum:        14.139.187.128 - 14.139.187.143
netname:        NKN-AVVU-TN
descr:          Amrita Vishwa Vidyapeetham University
country:        IN
admin-c:        NNA22-AP
tech-c:         PVR4-AP
abuse-c:        AN2115-AP
status:         ASSIGNED NON-PORTABLE
notify:         venkat@amrita.edu
mnt-by:         MAINT-RSMANI-NKN-IN
mnt-lower:      MAINT-NKN-IN
mnt-routes:     MAINT-RSMANI-NKN-IN
mnt-irt:        IRT-NKN-AVVU-TN
last-modified:  2021-02-03T13:42:53Z
source:         APNIC

irt:            IRT-NKN-AVVU-TN
address:        Ettimadai
address:        Amritanagar Coimbatore - 641112
address:        TN
address:        India
e-mail:         support.tn@nkn.in
abuse-mailbox:  abuseteam@nkn.in
admin-c:        NNA22-AP
tech-c:         PVR4-AP
auth:           # Filtered
remarks:        abuseteam@nkn.in was validated on 2023-10-06
remarks:        support.tn@nkn.in was validated on 2024-03-01
mnt-by:         MAINT-RSMANI-NKN-IN
last-modified:  2024-03-01T12:17:27Z
source:         APNIC

role:           ABUSE NKNAVVUTN
address:        Ettimadai
address:        Amritanagar Coimbatore - 641112
address:        TN
address:        India
country:        ZZ
phone:          +000000000
e-mail:         support.tn@nkn.in
admin-c:        NNA22-AP
tech-c:         PVR4-AP
nic-hdl:        AN2115-AP
remarks:        Generated from irt object IRT-NKN-AVVU-TN
remarks:        abuseteam@nkn.in was validated on 2023-10-06
remarks:        support.tn@nkn.in was validated on 2024-03-01
abuse-mailbox:  abuseteam@nkn.in
mnt-by:         APNIC-ABUSE
last-modified:  2024-03-01T12:18:16Z
source:         APNIC

role:           NKN - Network Administrator
address:        National Knowledge Network
address:        3rd Floor, Block III,
address:        Delhi IT Park, Shastri Park
address:        New Delhi - 110053
country:        IN
phone:          +91 - 1800111555
e-mail:         support@nkn.in
admin-c:        MR135-AP
tech-c:         GK397-AP
nic-hdl:        NNA22-AP
abuse-mailbox:  abuseteam@nkn.in
mnt-by:         MAINT-RSMANI-NKN-IN
last-modified:  2023-01-18T05:01:02Z
source:         APNIC

person:         P Venkat Rangan
address:        Amrita Vishwa Vidyapeetham
                (Deemed University),Ettimadai,
                Amritanagar Coimbatore - 641112
country:        IN
phone:          +91-9943984441
fax-no:         +91-0422-2685000
e-mail:         venkat@amrita.edu
nic-hdl:        PVR4-AP
notify:         venkat@amrita.edu
abuse-mailbox:  venkat@amrita.edu
mnt-by:         MAINT-IN-NKNINST1
last-modified:  2014-02-14T07:13:16Z
source:         APNIC

% Information related to '14.139.187.0/24AS55824'

route:          14.139.187.0/24
origin:         AS55824
descr:          National Knowledge Network
                C/O National Informatics Centre
                Ministry Of Comm & IT  A-Block
                CGO Complex Lodhi Road
mnt-by:         MAINT-RSMANI-NKN-IN
last-modified:  2019-01-10T11:58:45Z
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