% APNIC found the following authoritative answer from: whois.ripe.net

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://apps.db.ripe.net/docs/HTML-Terms-And-Conditions

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '160.99.0.0 - 160.99.255.255'

% No abuse contact registered for 160.99.0.0 - 160.99.255.255

inetnum:        160.99.0.0 - 160.99.255.255
status:         LEGACY
remarks:
remarks:        http://www.ripe.net/projects/erx/erx-ip/network-160.html
remarks:        **** INFORMATION FROM ARIN OBJECT ****
remarks:        netname: UNINET-NIS
descr:          Univerzitet U Nisu
descr:          Rektorat Univerziteta u Nisu
descr:          Univerzitetski Trg 2, Nis, 18000
remarks:        country: RS
admin-c:        MARK2000-RIPE
tech-c:         RATB1-RIPE
remarks:        changed: hostmaster@arin.net 19920506
remarks:        changed: hostmaster@arin.net 20020605
remarks:        **** INFORMATION FROM RIPE OBJECT ****
netname:        UNINET-NIS
descr:          Univerzitet u Nisu
descr:          Rektorat Univerziteta u Nisu
descr:          Trg bratstva i jedinstva 2
descr:          18000 NIS SERBIA
remarks:        country: RS
country:        RS
admin-c:        MARK2000-RIPE
tech-c:         RATB1-RIPE
remarks:        Assigned by InterNIC in July 1991
remarks:        info: http://www.ni.ac.rs/
remarks:        questions: hostmaster@ni.ac.rs
remarks:        abuse to: abuse@ni.ac.rs
mnt-by:         UNIVERZITET-U-NISU-MNT
created:        2002-09-05T12:37:17Z
last-modified:  2023-07-27T09:17:41Z
source:         RIPE

person:         Marko Zivkovic
address:        Univerzitetski Trg 2,18000 Ni?, Serbia
phone:          +38118257085
nic-hdl:        MARK2000-RIPE
mnt-by:         Univerzitet-u-Nisu-MNT
created:        2015-04-16T10:23:25Z
last-modified:  2015-04-16T10:23:25Z
source:         RIPE

person:         Ratko Bucic
address:        Univerzitet u Nisu - JUNIS
address:        Rektorat Univerziteta u Nisu
address:        Univerzitetski Trg 2
address:        18000 Nis
address:        Serbia
phone:          +381 18 257085
fax-no:         +381 18 258950
nic-hdl:        RATB1-RIPE
remarks:        powered by http://www.ni.ac.rs/
remarks:        information: http://www.ni.ac.rs/
remarks:        questions: mailto: support@ni.ac.rs
created:        1970-01-01T00:00:00Z
last-modified:  2016-04-05T23:46:33Z
mnt-by:         RIPE-NCC-LOCKED-MNT
source:         RIPE # Filtered

% Information related to '160.99.0.0/17AS13303'

route:          160.99.0.0/17
descr:          UNINET-NIS-RS
descr:          Univerzitet u Nisu
origin:         AS13303
mnt-by:         Univerzitet-u-Nisu-MNT
created:        2012-03-27T07:17:34Z
last-modified:  2012-03-27T07:17:34Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.111 (SHETLAND)

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