% 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 'AS50220 - AS50841'

as-block:       AS50220 - AS50841
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:        2024-08-12T14:10:44Z
last-modified:  2024-08-12T14:10:44Z
source:         RIPE

% Information related to 'AS50319'

% Abuse contact for 'AS50319' is 'networkservices-abuse@dustin.com'

aut-num:        AS50319
as-name:        DUSTIN-MS-NL
descr:          Dustin-Managed-Services-Netherlands
org:            ORG-XAB2-RIPE
import:         from AS41241 accept AS41241
import:         from AS3356 accept ANY
import:         from AS1299 accept ANY
export:         to AS3356 announce AS50319:AS-DUSTINMS-NL
export:         to AS1299 announce AS50319:AS-DUSTINMS-NL
admin-c:        UNB1-RIPE
tech-c:         UNB1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         NL-UNILOGICNET-MNT
created:        2015-01-20T09:55:06Z
last-modified:  2026-01-16T13:16:14Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.124.1 (DEXTER)