% 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 '136.199.0.0 - 136.199.255.255'

% No abuse contact registered for 136.199.0.0 - 136.199.255.255

inetnum:        136.199.0.0 - 136.199.255.255
netname:        UNI-TRIER
descr:          Universitaet Trier
country:        DE
admin-c:        AK20948-RIPE
tech-c:         OZ711-RIPE
status:         LEGACY
mnt-by:         AS2857-MNT
mnt-lower:      AS2857-MNT
mnt-routes:     AS2857-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2020-09-02T09:19:27Z
source:         RIPE

person:         Achim Klein
address:        Universitaet Trier
address:        Rechenzentrum
address:        Universitaetsring 15
address:        54296 Trier
address:        Germany
phone:          +49 651 201 4425
fax-no:         +49 651 201 3021
mnt-by:         AS2857-MNT
nic-hdl:        AK20948-RIPE
created:        2020-09-02T09:12:00Z
last-modified:  2020-09-02T09:12:00Z
source:         RIPE # Filtered

person:         Oliver Zahner
address:        Universitaet Trier
address:        Rechenzentrum
address:        Universitaetsring 15
address:        54296 Trier
address:        Germany
phone:          +49 651 201 3429
fax-no:         +49 651 201 3021
mnt-by:         AS2857-MNT
nic-hdl:        OZ711-RIPE
created:        2020-09-02T09:14:31Z
last-modified:  2020-09-02T09:14:31Z
source:         RIPE # Filtered

% Information related to '136.199.0.0/16AS2857'

route:          136.199.0.0/16
descr:          UNI-TRIER
origin:         AS2857
mnt-by:         AS2857-MNT
created:        2005-12-12T16:41:47Z
last-modified:  2005-12-12T16:41:47Z
source:         RIPE

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

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