% 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 'AS50220 - AS50891'

as-block:       AS50220 - AS50891
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:        2024-03-26T14:48:18Z
last-modified:  2024-03-26T14:48:18Z
source:         RIPE

% Information related to 'AS50857'

% Abuse contact for 'AS50857' is 'abuse+ripe@citymesh.com'

aut-num:        AS50857
as-name:        MACTELECOM-AS
org:            ORG-CN50-RIPE
import:         from AS3257 action pref=65435; accept ANY
import:         from AS199095 action pref=10; accept ANY
import:         from AS2914 action pref=65435; accept ANY
import:         from AS3356 action pref=65435; accept ANY
export:         to AS29096 announce AS50857
export:         to AS47377 announce AS50857
export:         to AS31241 announce AS50857
export:         to AS2611 announce AS50857
export:         to AS49046 announce AS50857
export:         to AS23148 announce AS50857
export:         to AS20650 announce AS50857
export:         to AS5463 announce AS50857
export:         to AS12989 announce AS50857
export:         to AS47537 announce AS50857
export:         to AS6661 announce AS50857
export:         to AS9031 announce AS50857
export:         to AS12493 announce AS50857
export:         to AS34144 announce AS50857
export:         to AS2611 announce AS50857
export:         to AS8674 announce AS50857
export:         to AS16265 announce AS50857
export:         to AS35219 announce AS50857
export:         to AS31449 announce AS50857
export:         to AS8201 announce AS50857
export:         to AS2484 announce AS50857
export:         to AS28707 announce AS50857
export:         to AS13226 announce AS50857
export:         to AS28707 announce AS50857
export:         to AS49964 announce AS50857
export:         to AS29533 announce AS50857
export:         to AS3257 announce AS50857
export:         to AS2914 announce AS50857
export:         to AS3356 announce AS50857
export:         to AS196755 announce AS50857
export:         to AS6774 announce AS50857
export:         to AS199095 announce AS50857
admin-c:        IDC271-RIPE
tech-c:         IDC271-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CITYMESH-MNT
created:        2010-04-09T12:48:20Z
last-modified:  2024-04-18T09:26:40Z
source:         RIPE

organisation:   ORG-CN50-RIPE
org-name:       Citymesh Integrator NV
country:        BE
org-type:       LIR
address:        Siemenslaan 13
address:        8020
address:        Oostkamp
address:        BELGIUM
phone:          +3250410200
fax-no:         +3250320603
abuse-c:        AR14165-RIPE
admin-c:        IDC271-RIPE
tech-c:         IDC271-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CITYMESH-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CITYMESH-MNT
created:        2011-03-08T10:33:19Z
last-modified:  2024-04-12T14:12:43Z
source:         RIPE # Filtered

role:           Datacenter Network Team
address:        Siemenslaan 13, 8020 Oostkamp, Belgium
tech-c:         FS14668-RIPE
tech-c:         CV5034-RIPE
tech-c:         GS23582-RIPE
nic-hdl:        IDC271-RIPE
mnt-by:         CITYMESH-MNT
created:        2017-10-17T15:19:53Z
last-modified:  2024-04-18T07:55:22Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.112 (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