% 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 'AS35778 - AS35839'

as-block:       AS35778 - AS35839
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:        2023-06-22T14:47:05Z
last-modified:  2023-06-22T14:47:05Z
source:         RIPE

% Information related to 'AS35833'

% Abuse contact for 'AS35833' is 'ripeabuse@mpex.de'

aut-num:        AS35833
as-name:        MPEXNET
org:            ORG-MG12-RIPE
import:         from AS1299 accept any
import:         from AS3356 accept any
remarks:
remarks:        ############ B-CIX Peers ############
remarks:
import:         from AS680 accept AS-DFNTOWINISP
import:         from AS6724 accept AS-STRATORZ
import:         from AS8881 accept AS-VERSATEL
import:         from AS9002 accept AS-RETN
import:         from AS12693 accept AS-EDISCOM
import:         from AS12732 accept AS-ALL
import:         from AS13184 accept AS-HANSENET
import:         from AS16374 accept AS-BCIX
import:         from AS29670 accept AS-IN-BERLIN
import:         from AS31334 accept AS-KDG
import:         from AS33811 accept AS-PIXEL-UP
remarks:
remarks:        ############ E-CIX Peers ############
remarks:
import:         from AS5430 accept AS-FREENETDE
import:         from AS9033 accept AS9033
remarks:
remarks:
export:         to AS1299 announce AS-MPEXNETWORKS
export:         to AS3356 announce AS-MPEXNETWORKS
remarks:
remarks:        ############ B-CIX Peers ############
remarks:
export:         to AS680 announce AS-MPEXNETWORKS
export:         to AS6724 announce AS-MPEXNETWORKS
export:         to AS8881 announce AS-MPEXNETWORKS
export:         to AS9002 announce AS-MPEXNETWORKS
export:         to AS12693 announce AS-MPEXNETWORKS
export:         to AS12732 announce AS-MPEXNETWORKS
export:         to AS13184 announce AS-MPEXNETWORKS
export:         to AS16374 announce AS-MPEXNETWORKS
export:         to AS29670 announce AS-MPEXNETWORKS
export:         to AS31334 announce AS-MPEXNETWORKS
export:         to AS33811 announce AS-MPEXNETWORKS
remarks:
remarks:        ############ E-CIX Peers ############
remarks:
export:         to AS5430 announce AS-MPEXNETWORKS
export:         to AS9033 announce AS-MPEXNETWORKS
remarks:
admin-c:        MPEX-RIPE
tech-c:         MPEX-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MPEXNET-MNT
created:        2005-11-09T14:52:05Z
last-modified:  2018-09-04T10:12:24Z
source:         RIPE

organisation:   ORG-MG12-RIPE
org-name:       mpex GmbH
country:        DE
org-type:       LIR
address:        Werner-Voss-Damm 62
address:        12101
address:        Berlin
address:        GERMANY
phone:          +493078097180
fax-no:         +493078097181
admin-c:        GL422-RIPE
admin-c:        LB540-RIPE
mnt-ref:        MPEXNET-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MPEXNET-MNT
abuse-c:        MPEX-RIPE
created:        2005-07-11T09:25:50Z
last-modified:  2020-12-16T12:57:11Z
source:         RIPE # Filtered

role:           mpex GmbH
address:        Werner-Voss-Damm 62
address:        12101 Berlin
address:        Germany
admin-c:        LB540-RIPE
admin-c:        GL422-RIPE
tech-c:         LB540-RIPE
tech-c:         GL422-RIPE
nic-hdl:        MPEX-RIPE
mnt-by:         MPEXNET-MNT
created:        2005-11-09T14:39:54Z
last-modified:  2016-07-12T14:08:02Z
source:         RIPE # Filtered
abuse-mailbox:  ripeabuse@mpex.de

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

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