% 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://docs.db.ripe.net/terms-conditions.html

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

% Information related to 'AS25365 - AS25542'

as-block:       AS25365 - AS25542
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE

% Information related to 'AS25538'

% Abuse contact for 'AS25538' is 'abuse@in-ulm.de'

aut-num:        AS25538
as-name:        IN-ULM
org:            ORG-IUen1-RIPE
remarks:        network of IN-ULM e.V.
remarks:        IN-Ulm e.V. is a non commercial ISP for the region of Ulm/DE
admin-c:        RK10381-RIPE
tech-c:         AFB13-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
import:         from AS48284 accept ANY
import:         from AS6939 accept ANY
import:         from AS41051 accept ANY
import:         from AS553 accept AS-BELWUE
export:         to AS48284 announce AS25538
export:         to AS553 announce AS25538
export:         to AS6939 announce AS25538
export:         to AS41051 announce AS25538
mnt-by:         BN-ULM
created:        2002-12-27T16:00:59Z
last-modified:  2021-01-28T20:18:51Z
source:         RIPE # Filtered

organisation:   ORG-IUen1-RIPE
org-name:       Internet Ulm/Neu-Ulm e.V.
country:        DE
org-type:       LIR
address:        M.-Dietrich-Str. 5
address:        89231
address:        Neu-Ulm
address:        GERMANY
phone:          +497319702510
fax-no:         +497319702511
admin-c:        VT100
admin-c:        RK10381-RIPE
admin-c:        PAUL3-RIPE
admin-c:        AFB13-RIPE
mnt-ref:        BN-ULM
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BN-ULM
abuse-c:        IAC22-RIPE
created:        2004-04-17T11:06:55Z
last-modified:  2020-12-16T13:06:37Z
source:         RIPE # Filtered

person:         Andreas Franz Borchert
address:        Am Nohl 33
address:        89173 Lonsee, Germany
phone:          +49 7336 5896
nic-hdl:        AFB13-RIPE
mnt-by:         BN-ULM
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T01:09:35Z
source:         RIPE # Filtered

person:         Raimund Konz
address:        Internet Ulm/Neu-Ulm eV
address:        Marlene-Dietrich-Str. 5
address:        DE 89231 Neu-Ulm
phone:          +49 731 97025-10
nic-hdl:        RK10381-RIPE
mnt-by:         RKO-MNT
created:        2018-09-08T13:10:18Z
last-modified:  2018-09-08T13:11:44Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.114 (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